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| 5051 | Gamified Learning in MRI Safety | |
| Hui Ping Oh1, QianHui Cheng1, and Joanna Pearly Ti1 | ||
1Neuroradiology, National Neuroscience Institute, Singapore, Singapore |
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Magnetic Resonance (MR) safety plays an important role in ensuring patients and staff safety and is important for all staff to be competent prior to working in the MRI environment. To make MR safety training more engaging and motivated, game-based learning was adopted to simulate situations that are dangerous and impossible to re-enact in the real world. Learner acts as avatar and explore the MR safety concepts through a 3D version of the National Neuroscience Institute (NNI), Neuroradiology department. Learner will identify hazards through mini-games and role-play as Chief Risk Officer to identify gaps from a MR related accident |
| 5052 | I’m Late, I’m Late, For a Very Important Date: Pointers for Effective Patient Communication in MRI | |
| Gail H Kohls1,2,3, Hailu Woldemichael2, and Hood N Maureen1,2 | ||
1Radiology, Uniformed Services University, Bethesda, MD, United States, 2Radiology, Walter Reed National Military Medical Center, Bethesda, MD, United States, 3Geneva Foundation, Tacoma, WA, United States |
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Many of us have or are now working in a high volume fast paced MR environment. But what happens when your patient is anxious, in pain, angry or any other of the many obstacles we as MR Technologist/Radiographers may encounter? First impressions will set the mood for the entire procedure and possibly the whole time your patient is at your institution. Being kind, patient and willing to listen to your patients will go a long way when dealing with anxious patients. You can make a difference. |
| 5053 | SAR Considerations of MRI Patients with Implanted Deep Brain Stimulator | |
| Jia Hui Wong1 and Ei Ei Nyein1 | ||
1Neuroradiology, National Neuroscience Institute Singapore, Singapore, Singapore |
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Magnetic Resonance Imaging (MRI) has been a widely used modality in patients with Deep Brain Stimulator (DBS) for a variety of neurological diseases. Radiofrequency heating still presents as a major concern in patient’s safety and exists as the most common limiting factor. This poster would help individuals to gain a deeper understanding about the importance of SAR considerations in patients with DBS whilst undergoing MRI without compromising patients safety and scan quality. |
| 5054 | Improving MRI in patients with Cochlear Implants (CIs) | |
| Joanna Rothwell1,2,3 and Rebecca Susan Dewey3,4,5,6 | ||
1Radiology Department, Glan Clwyd Hospital, Bodelwyddan, Wales, United Kingdom, 2Betsi Cadwaladr University Health Board, Bangor, Wales, United Kingdom, 3British Cochlear Implant Group MRI Working Group, Bradford, United Kingdom, 4Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham, United Kingdom, 5Hearing Theme, NIHR Nottingham Biomedical Research Centre, Nottingham, United Kingdom, 6Hearing Sciences, School of Medicine, University of Nottingham, Nottingham, United Kingdom |
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A cochlear implant (CI) contains an implanted magnet placed under the scalp. Deaf children often receive a CI in their first year and as such are likely to need MRI in their lifetime. The presence of an implanted magnet raises safety concerns around MRI, with MRI often being avoided in favour of other imaging techniques that are less diagnostically powerful and use ionising radiation. The British Cochlear Implant Group (BCIG) MRI Working Group was assembled with the aim of collecting existing best practice and produce a set of guidance for the safe and effective clinical MR in individuals with CIs. |
| 5055 | Chemical Shift Proton Density Fat Fraction Imaging: End-user perspectives on liver fat assessment | |
| Jennifer D Wagner1, Chikara Noda2, Jason Ortman2, Yoshimori Kassai3, Joao Lima2, and Chia Liu1 | ||
1Canon Medical Research USA, Mayfield Village, OH, United States, 2Cardiology, Johns Hopkins University, Baltimore, MD, United States, 3Canon Medical Systems Corporation, Tochigi, Japan |
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CS-PDFF is an indispensable method of assessing steatosis. However, each site must make informed decisions when selecting assessment methodology, as both ROI style and location can impact measurements. This abstract discusses how well ROIs of various styles characterize average PDFF and, additionally, how each ROI style tolerates the influence of various confounding factors (e.g.: artifacts and elevated noise). We also explore potential contributing factors to localized variations in hepatic PDFF, as well as their relative importance. Finally, select normative values from our cohort are reported, with a focus on observed differences as related to ROI placement and size. |
| 5056 | Techniques for Preparing and Scanning Neonatal Patients for MRI | |
| John Posh1 | ||
1MRI, Robert wood Johnson University Hospital, New Brunswick, NJ, United States |
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Neonatal Imaging can be challenging in MRI. New texts are often unsure of how to ensure the babies safety and "compliance". We present here are some basic techniques on how to prepare and scan neonatal patients in MRI |
| 5057 | Proposal for an MRI protocol for cerebrospinal flows | |
| Garance ARBEAUMONT-TROCME1, julien VAN GYSEL1, Olivier BALEDENT2, and Serge METANBOU1 | ||
1Radiology, CHU amiens picardie, AMIENS, France, 2CHU amiens picardie, AMIENS, France |
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Flow MRI is useful for imaging flow from the LCS and blood in the craniospinal system. Currently, at the Amiens University Hospital, we are performing these sequences in clinical routine in patients with pathologies involving potential alterations in cerebral hemohydynamics such as hydrocephalus, intracranial hypertension, Arnold Chiari's malformation. This poster presents the specifics of the MRI flow sequence applied to brain flows. |
| 5058 | Iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL-IQ) for evaluation of early bone mass changes in senile osteoporosis patients | |
| Yonggui Yang1, Xiufen Wu1, Fang Chen1, Xinyu Xu1, Pu-Yeh Wu2, and Gen Yan1 | ||
1Department of Radiology Imaging, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China, 2GE Healthcare, Beijing, China |
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BMD is the basis of the diagnostic criteria of OP recommended byWHO. However, limitations in the prediction and evaluation of fracture in postmenopausal_women, because BMD can not fully reflect the bone quality that affects bone strength and fracture risk. We found significant differences in the values among three groups. FF, fat-phase and water-phase value had good performance, while R2*value had poor performance in discriminating osteopenia and OPgroups. Overall, IDEAL-IQtechniqueis expected to provide certain reference indexes, which can noninvasively and quantitatively evaluate the bone metabolism of lumbar vertebrae, such as fat content, and provide accurate information for differential diagnosis of OP. |
| 5059 | A conclusion on how computer-aided localization of a breast lesion impact Breast MRI-guided biopsies when compared with manual localization techniques | |
| Larowin Toni1, Galina Vernikov2, Olga Smelianskaia2, and Yolanda Bryce2 | ||
1Radiology, Memorial Sloan Kettering Cancer Center, Forest Hills, NY, United States, 2Memorial Sloan Kettering Cancer Center, New York, NY, United States |
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Patients with suspicious lesions on MRI that cannot be detected with another modality may undergo MRI guided biopsy. The MRI biopsy may induce anxiety and may be uncomfortable with the breast in compression which may be exacerbated by the length of the procedure. Software has been developed by certain companies to streamline and increase ease of the MRI-guided biopsy. We performed a study to see if this software decreases the length of the procedure. We also will see if software leads to differences recommendation, concordance, and subsequent cancer if the biopsy was benign. |
| 5060 | Radial-Cartesian K-Space Acquisition for Consistent High-Resolution and High-Quality Knee MRI | |
| Sajith Rajamani1, Harsh Kumar Agarwal1, Jeremy Heinlein2, and Ramesh Venkatesan1 | ||
1GE Healthcare, Bangalore, India, 2GE Healthcare, Waukesha, WI, United States |
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Knee MRI is the most common Musculo-skeletal MRI [1]. It is a non-invasive tool for the evaluation of disorders such as meniscal, ligamental, soft tissue, bone and bone marrow injuries and abnormalities. Acquisition of a high-resolution and high-quality MRI is key to boost the confidence of the radiologist in diagnosis. In this manuscript we have presented how radial MRI, commercially referred to as PROPELLER (GE)/ BLADE (Siemens)/ MULTIVANE (Philips) etc. parameters, patient positioning and immobilization can be adapted for the available hardware such as receiver coil to yield high-resolution and high-quality knee MRI. |
| 5061 | Role of cardiovascular magnetic resonance in differentiating peripartum cardiomyopathy from pregnancy unmasking of underlying cardiomyopathy | |
| Petronella Samuels1,2, Sarah Kraus1,3,4, Jacqueline Cirota4, Stephen Jermy1,2, Sulaiman Moosa5, and Ntobeko Ntusi1,3,4 | ||
1Cape Universities Body Imaging Centre, University of Cape Town, Cape Town, South Africa, 2Division of Human Biology, Department of Biomedical Engineering, University Of Cape Town, Cape Town, South Africa, 3Cape Heart Institute, Faculty of Health Sciences,, University of Cape Town, Cape Town, South Africa, 4Division of Cardiology, Department of Medicine, University of Cape Town, Cape Town, South Africa, 5Department of Radiation Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa |
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Peripartum cardiomyopathy (PPCM) is a form of heart failure associated with pregnancy.1,2 We evaluated cardiovascular magnetic resonance (CMR) scans on 6 patients with PPCM and incomplete recovery. CMR showed an increase in left ventricular volumes and impairment of left ventricular ejection fraction (6-39%) in all patients. Right ventricular dysfunction was present in 5 patients. Linear mid-wall late gadolinium enhancement was present in all cases. Two patients had PPCM, one had dilated cardiomyopathy (DCM) with hypertrophy, 2 had DCM with left ventricular non-compaction [>6 months postpartum], and one had familial DCM. CMR is useful in distinguishing PPCM from other DCM phenotypes.
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| 5062 | EPIc-reMIX, an Accelerated Routine Brain Imaging Protocol | |
| Brian Johnson1, Jonathan Chia1, Dave Hitt1, Robert Lay1, Tom Lowe1, Michael Pawlak1, John Penatzer1, James Snicer1, Marcie Stopchinski1, Gregory Thomas1, Kristen Williams1, and Paul Worthington1 | ||
1Philips Healthcare, Gainesville, FL, United States |
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EPIMix is a multi-contrast EPI sequence developed which generates the standard brain imaging contrasts in 78 seconds. Studies using accelerated brain protocols like EPIMix and GoBrain have shown similar diagnostic performance to the routine clinical protocols. However, EPIMix suffers from EPI geometric distortions and like GoBrain is limited to 2D acquisitions. EPIc-reMIX, an accelerated brain imaging protocol, was created to leverage the speed of EPIMix and GoBrain while improving image quality and adding 3D-imaging capabilities. |
| 5063 | Cardiovascular Magnetic Resonance (CMR) in the diagnosis of Sarcoidosis: A Case report | |
| Patricia Mazwi Maishi1,2, Petronella Samuels1,2, Sulaiman Moosa3, and Ntobeko Ntusi1,4,5 | ||
1Cape Universities Body Imaging Centre, University of Cape Town, Cape Town, South Africa, 2Division of Human Biology, Department of Biomedical Engineering, University of Cape Town, Cape Town, South Africa, 3Department of Radiation Medicine, Groote Schuur Hospital, Cape Town, South Africa, 4Department of Medicine, faculty of Health Sciences, University of Cape Town, Cape Town, South Africa, 5The Hatter Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa |
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Sarcoidosis is defined as a multisystem granulomatous disease of unknown origin, characterized by noncaseating granulomas. In cardiac sarcoidosis (CS), granulomas have been linked to ventricular tachyarrhythmias and electrical instability. Cardiovascular magnetic resonance (CMR) can provide diagnostic information and aid the clinical management. Here, we report a case of a middle-aged male patient with intermittent complete heart block and with a history of hypertension and diabetes mellitus. He was referred for evaluation of CS. Subsequently, the patient underwent successful cardiac pacemaker implant and remains clinically well. |
| 5064 | Reducing motion artifacts on abdominal PET/MR images | |
| Vahid Ravanfar1, Mohammad Mehdi Khalighi2, Chad Bobb3, Emma Bahroos1, Youngho Seo1, Namasvi Jariwala1, and Spencer Behr1 | ||
1Radiology, University of California, San Francisco, San Francisco, CA, United States, 2Research, Stanford University, Palo Alto, CA, United States, 3PET/MR Clinical Development, GE Healthcare, Waukesha, WI, United States |
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Motion can pose a significant challenge for positron emission tomography (PET) reconstructions. A block sequential regularized expectation maximization reconstruction algorithm (Q.Clear, GE Healthcare) is used to increase the signal-to-noise ratio (SNR) of PET images. Respiratory motion compensation Quiescent Phase Gating (QPG), also called Q.Static, is used to reduce motion-induced artifacts by extracting data from the quiescent period. Q.Static performed without Q.Clear increases image noise as only ~50% of the counts are utilized for image reconstruction. However, Q.Static performed with Q.Clear improves image quality for whole-body PET without increasing the scan time. |
| 5065 | Are low dose CT scouts suitable for MRI safety screening of subjects with unknown medical history? | |
| Hannah Barnsley1,2, Sam Uzoukwu1, and Marco Borri1 | ||
1King's College Hospital, london, United Kingdom, 2Royal Marsden Hospital, London, United Kingdom |
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Increasing numbers of patients are presenting for MRI who cannot complete the safety questionnaires. CT scout images have low radiation dose, and are faster and easier to acquire compared to plain film x-rays, the recommended modality for MR safety screening for patients with unknown history. This study assesses the performance of CT scout images in detecting and identifying a range of head/neck and body implants. Using 40 head/neck and 40 body CT scouts, two Readers reviewed the images for possible internal implants. 88% of implants were found and correctly identified, concluding that the majority of visible implants are detectable. |
| 5066 | New reference ADC data for the normal brain with distortion correction in TSE- and EPI-DWI | |
| Yasuo Takatsu1,2,3, Masafumi Nakamura4, Hajime Sagawa5, Yuichi Suzuki6, Nobuyuki Mori7, Shunichi Motegi8, and Tosiaki Miyati9 | ||
1Department of Radiological Technology, Faculty of Health and Welfare, Tokushima Bunri University, Sanuki-city, Japan, 2Department of System Control Engineering, Graduate School of Engineering, Tokushima Bunri University, Sanuki-city, Japan, 3Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan, 4Otsu City Hospital, Otsu, Japan, 5Division of Clinical Radiology Service, Kyoto University Hospital, Kyoto, Japan, 6Department of Radiology, The University of Tokyo Hospital, Tokyo, Japan, 7Department of Radiology, Osaka Red Cross Hospital, Osaka, Japan, 8Department of Radiological Sciences, International University of Health and Welfare, Ohtawara, Japan, 9Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University., Kanazawa, Japan |
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We performed echo planar imaging (EPI) and turbo spin echo (TSE) diffusion-weighted imaging (DWI) using magnetic resonance imaging to obtain basic clinical data of the apparent diffusion coefficient (ADC) in 26 parts of normal brains and compared the datasets using our retrospective distortion correction technique. The ADC was significantly higher measured by EPI-DWI than by TSE-DWI. The signal-to-noise ratio of EPI-DWI was significantly higher than that of the TSE-DWI. Care must be taken when measuring ADCs near the base of the skull, such as the brain stem, where the SNR of the imaging technique is likely to decrease or distort. |
| 5067 | Reductin of cervical motion and ADC inaccuracy by use of neck fixation device for DWIBS Imaging | |
| Naotaka Kaminaga1, Tomoya Kobayashi2, Yoshiyuki Ishimori2, Keisuke Kanai3, Masanori Habe3, and Masahiro Ida3 | ||
1National Hospital Organization Ibarakihigashi Hospital, Toukai, Japan, 2Graduate School of Ibaraki Prefectural University of Health Sciences, Ami, Japan, 3National Hospital Organization Mito Medical Center, Ibaraki-machi, Japan |
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The effectiveness of a neck fixation device to improve the image quality of DWIBS was investigated. Healthy volunteers were examined while chewing with and without a neck fixation device using 3-T MRI system. The amount of mandibular bone movement and the ADC values of some body parts were decreased by the fixation device. These are thought to improve the image quality and the ADC measurement accuracy. The technique using a neck fixation device helps improve image quality of DWIBS in the head and neck region. |
| 5068 | Influence of arm position on proton density fat fraction in vertebral bone marrow using chemical shift-encoded magnetic resonance imaging | |
| Tatsuya Hayashi1, Shimpei Yano2, Shuhei Shibukawa3, Toshimune Ito1, and Shinya Kojima1 | ||
1Graduate School of Medical Technology, Teikyo University, Tokyo, Japan, 2Central of Radiology, Teikyo University Hospital, Tokyo, Japan, 3Department of Radiological Technology, Juntendo University, Tokyo, Japan |
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Reports have shown radio frequency magnetic field (B1) inhomogeneity during spine imaging. Proton density fat fraction (PDFF) measurement using chemical shift-encoded magnetic resonance imaging has been performed using a low flip angle to avoid T1 bias. However, differences in arm positions during MRI can cause changes in B1 heterogeneity. This study evaluated the influence of arm position (side and elevated arm positions) on the PDFF obtained from the lumbar spine, where B1 heterogeneity tends to occur. The PDFF was slightly but significantly higher in the elevated arm position than in the side arm position. |
| 5069 | Health complaints subjectively associated with static magnetic field and acoustic noise exposure among MR personnel in Sweden | |
| Anton Glans1,2, Jonna Wilén2, Lenita Lindgren1, Isabella M. Björkman-Burtscher3,4, and Boel Hansson5,6 | ||
1Department of Nursing, Umeå University, Umeå, Sweden, 2Department of Radiation Sciences, Radiation Physics, Umeå University, Umeå, Sweden, 3Department of Radiology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, 4Department of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden, 5Department of Medical Imaging and Physiology, Skåne University Hospital, Lund, Sweden, 6Department of Diagnostic Radiology, Clinical Sciences, Lund University, Lund, Sweden |
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Our aim was to explore the prevalence of health complaints subjectively associated with static magnetic field and acoustic noise exposure among MR personnel in Sweden, using CT personnel as a control group. Utilizing a cross-sectional survey, 529 respondents answered items regarding symptom prevalence and its attribution, acoustic noise at work, health factors and work-environmental details including stress. Respondents were categorized into three groups (MR personnel, CT personnel, and mixed personnel (both MR and CT)) and data were tested with logistic regression to evaluate risk associations with symptoms. |
| 5070 | Evaluation of the characteristics of magnetic detectors and metal detectors for MRI examinations | |
| Norio Hayashi1, Yutaka Kato2, Ryuya Okawa3, Yuuki Deguchi4, Seiji Yahata5, Shinsuke Kobayashi2, and Tetsuhiko Takahashi1 | ||
1Radiological Technology, Gunma Prefectural College of Health Sciences, Maebashi, Japan, 2Radiological Technology, Nagoya University Hospital, Nagoya, Japan, 3Diagnostic imaging, Institute of Brain and Blood Vessels Mihara Memorial Hospital, Isesaki, Japan, 4Imaging Center, St. Marianna University School of Medicine Hospital, Kawasaki, Japan, 5Radiological Technology, Tokyo Women's Medical University Hospital, Shinjuku, Japan |
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The purpose of this study is to evaluate magnetic detectors and metal detectors to understand their performance and characteristics. The measurement objects were smartphones, disposable pocket warmers, scissors, ballpoint pens, safety pins, and hair bands with rings. The detection performance of each object was examined at several facilities using a gate-type, a pole-type and, a handheld-type magnetic detectors and a handheld-type metal detector. There were differences in detectability depending on the size and type of magnetic material. The sensitivity range and objects that are easy to detect may also differ depending on the type of detector. |
| 5071 | A comparison of child and adult perceptions and experiences of having an MRI at 7T | |
| Pip Bridgen1,2, Kathleen Colford1,2,3,4, Thomas Wilkinson1,5, Jan Sedlacik1,4,6, Katy Vecchiato4,7, Chiara Casella4, Raphael Tomi-Tricott1,4,5,8, David Carmichael1,5, Jonathan O’Muircheartaigh4,7,9, Shaihan Malik1,4,5, Sharon Giles1,2, Joseph V. Hajnal1,4,5, and Emer Hughes1,2,3,4 | ||
1London Collaborative Ultra high field System (LoCUS), London, UK, Kings College London, London, United Kingdom, 2Guys and St Thomas’ NHS Foundation Trust, Kings College London, London, United Kingdom, 3Perinatal Imaging and Health, Kings College London, London, United Kingdom, 4Centre for the Developing Brain, School of Biomedical Engineering and Imaging Sciences, Kings College London, London, United Kingdom, 5Biomedical Engineering Department, School of Biomedical Engineering and Imaging Sciences, Kings College London, London, United Kingdom, 6Radiology Department, Great Ormond Street Hospital for Children, London, United Kingdom, 7Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, United Kingdom, 8MR Research Collaborations, Siemens Healthcare Limited, London, United Kingdom, 9MRC Centre for Neurodevelopmental Disorders, Kings College London, London, United Kingdom |
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The aim of this study was to gather data from children on their subjective experiences when undergoing high field MRI and compare this to adult data collected with similar questionnaires. Seventeen children and twenty-six healthy adults had brain imaging at 7T. Their experiences which included: (a) acoustic noise, (b) anxiety, (c) metallic taste (d) vertigo (dizziness) and e) involuntary eye movement (nystagmus) or flashing lights were evaluated. We found that children scanned at 7T reported similar experiences to adults. |
| 5072 | Non-Invasive MRI of Putamen Using Fused T1 MPRAGE and IR TSE FLAIR | |
| Anna M Borkon1, Michael J DiBalsi2, Amy Muehlmatt3, Geary M Smith3, and Timothy H Lucas4 | ||
1MRI Research, University of Pennsylvania, Philadelphia, PA, United States, 2MRI Interventions, ClearPoint, Irvine, CA, United States, 3Comparative Medicine Services Core, CHOP Research Institute, Philadelphia, PA, United States, 4Neurosurgery, University of Pennsylvania, Philadelphia, PA, United States |
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The innovative method of fusing T1-weighted magnetization prepared rapid acquisition gradient echo (MPRAGE) and inversion recovery turbo spin echo fluid-attenuated inversion recovery (IR TSE FLAIR) provides the whole brain image with improved tissue contrast and distinguishes the boundaries within the subcortical structures of the basal ganglia. The presented experiment uses non-invasive MRI-guided imaging to obtain an adequate therapeutic coverage infusing the AAV test article to the right and left Putamen. Results have shown that fused MPRAGE and IR TSE FLAIR acquisitions obtained non-invasively provides more reliable and precise imaging of the right and left Putamen targeted for gene therapy. |
| 5073 | Noise Power Spectrum and Modulation Transfer Function in Deep Learning Based Reconstruction Method | |
| Ryosuke Nasada1, Tatsuhito Yamamoto1, Yoshiyuki Hiramitsu1, Kenji Ugusa1, Kumiko Ando2, and Reiichi Ishikura2 | ||
1Radiological Technology, Kobe City Medical Center General Hospital, Kobe, Japan, 2Diagnostic Radiology, Kobe City Medical Center General Hospital, Kobe, Japan |
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The purpose of this study was to evaluate the effects of Deep Learning (DL) method in MRI using Noise Power Spectrum and Modulation Transfer Function. To evaluate the effect of DL method, we compared the results without DL method and the results with DL method in the NPS and the MTF using phantom MR images. Deep learning Reconstruction method in MRI has the ability to reduce the average NPS value by more than 48.7% in denoising and improve the spatial resolution by 50% at all DL intensities. |
| 5074 | Reducing MRI scan time to increase patient throughput | |
| Craig DeVincent1, Madhur Srivastava2, and Armando Mendoza1 | ||
1Radiology, UCSF, San Francisco, CA, United States, 2Chemistry nd Chemical Biology, Cornell University, Ithaca, NY, United States |
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We have developed a novel wavelet-based signal processing algorithm capable of denoising signals with extremely low signal-to-noise ratios. The idea is that if raw MRI signals can be denoised in real-time prior to image generation, high quality images can potentially be obtained at drastically shorter scan-times, thereby improving patient comfort and increasing imaging throughput. While conventional signal processing methods are often limited by inadequate noise removal or signal distortion, our method does not suffer from such drawbacks, as it performs localized noise removal based on capturing randomness. This represents an opportunity to increase MRI throughput within existing infrastructure. |
| 5075 | Anxiety relaxation during MRI with a patient-friendly audiovisual system | |
| Koji Matsumoto1, Kenji Shimokawa1, Hajime Yokota2, Eiichi Kobayashi3, Yoshiyuki Hirano4, Yoshitada Masuda1, and Takashi Uno2 | ||
1Department of Radiology, Chiba University Hospital, Chiba, Japan, 2Diagnostic Radiology and Radiation Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan, 3Department of Neurosurgery, National Hospital Organization Chiba Medical Center, Chiba, Japan, 4Research Center for Child Mental Development, Chiba University, Chiba, Japan |
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Many patients experience anxiety, not limited to claustrophobia, before magnetic resonance imaging (MRI) examination. Thus, to examine improvements to the environment during MRI examinations, this study employed a non-randomized controlled trial and evaluated whether a patient-friendly audiovisual system in the MR scanner room reduces patient anxiety. As a result, the patient-friendly audiovisual system compared to the traditional environment reduced anxiety in patients undergoing MRI examinations. Thus, this system can be used to provide a more patient-centered environment and may relieve the negative perceptions associated with MRI examinations. |
| 5076 | Whole Body DWI at 3T with Inline Geometric Distortion Correction and Broadband RF Inversion | |
| Ben Kennedy1 and Iain Ball2 | ||
1Mermaid Beach Radiology, Gold Coast, Australia, 2Philips Healthcare ANZ Clinical Science, Sydney, Australia |
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The purpose of this work is to reverse geometric distortion uniformly across all stations of whole body Diffusion Weighted Imaging (DWI) at 3T for near perfect co-registration with cartesian imaging and correct alignment between stations for improved diagnostic confidence. This translation of a well established and published research technique translated in to clinical in-line application for geometric distortion correction in Whole Body DWI applications at 3T has revolutionised our confidence further in challenging regions of the body such as the thorax as well as vastly improved geometric stitching of multiple stations. |
| 5077 | 3D Cranial Nerve Imaging with Background Suppression at 3T | |
| Ben Kennedy1 and Iain Ball2 | ||
1Mermaid Beach Radiology, Gold Coast, Australia, 2Philips Healthcare ANZ Clinical Science, Sydney, Australia |
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Clinical presentations of many cranial nerve symptoms are scanned without an obvious gross pathology. The gold standard in MRI of high resolution multiplanar imaging with and without contrast often result in no obvious anatomical or post contrast injection enhancement changes. It involves a 3D fast spin echo Short Tau Inversion Recovery (STIR) with addition Motion Sensitive Driven Equilibrium (MSDE) preparation pulses for blood vessel/flow suppression. This sequence is improving our diagnostic confidence of cranial nerve neuropathies/neuritis with validation of perceived clinical indications. |
| 5078 | Constructing an Image Quality Comparison | |
| Kristina M. Pelkola1,2, Tess E. Wallace1,2, Peter J. Morriss1,2, Monet E. Dugan1,2, Camilo Jaimes1,2, Onur Afacan1,2, and Simon K. Warfield1,2 | ||
1Radiology, Boston Children's Hospital, Boston, MA, United States, 2Computational Radiology Laboratory, Boston Children's Hospital, Boston, MA, United States |
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Magnetic resonance imaging (MRI) has become an increasingly popular imaging exam for pediatric patients due to its high resolution, multiplanar capabilities, and lack of ionizing radiation [1]. MRI is highly beneficial by providing detailed imaging to assist in the diagnosis and treatment plan for patients, but before a sequence becomes part of an established clinical protocol, there are many trials performed and data collected. Novel sequences, such as the motion robust imaging technique MPnRAGE [2], are emerging to help alleviate clinical imaging dilemmas, like motion artifacts, but this data needs to be examined and understood to make advancements. |
| 5079 | Evaluating Preparation Methods for Clinical MRI Scans in Young Children without Anesthesia | |
| Marty Sherriff1, Sarah Fletcher1, David Lardner1, Mercedes Bagshawe1, Lisa Carsolio1, Cathy Smith1, and Catherine Lebel1 | ||
1Alberta Children's Hospital, Calgary, AB, Canada |
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We compared the efficacy of three different preparation methods for clinical MRI scans without sedation in young children (3-7 years): at-home resources, a session with a child-life specialist, or a mock MRI session with a child life specialist. Success rates were excellent at 91%, with no differences between training groups. Subtle group differences in fear/anxiety ratings suggest a slight benefit of the mock MRI session in reducing anxiety before scans. |