The survey was built with logic, and if a respondent indicated that they did not perform MR-VWI, he or she skipped to the last 4 questions of the MR-VWI portion of the survey, focused on barriers to MR-VWI performance and ordering-provider interest (the questions in the survey are provided in the Online Supplemental Data). Through an iterative review process, the final survey was developed on the platform. The survey was discussed at ASNR Vessel Wall Imaging Study Group meetings and developed through input by multiple Study Group members. The survey can help inform the ASNR Vessel Wall Imaging Study Group on the needs of the neuroradiologic community on how to best educate and facilitate the performance of MR-VWI, as well as guide vendors on technical needs for broader MR-VWI use. To our knowledge, this is the first study to evaluate institutional use of MR-VWI across a United States–based neuroradiologic society. For institutions already performing MR-VWI, our goal was to evaluate applications of the technique, which sequences were being used, how the techniques were developed, levels of clinician interest, and vendor collaborations for technique development. The goal of the current survey study was to poll the membership of the ASNR to determine whether institutions were performing MR-VWI, and if not, what barriers exist to its implementation and use. 13 Numerous barriers to the implementation of MR-VWI may exist at many institutions, including technology, expertise, knowledge, workflow limitations, and/or vendor relation limitations. 11, 12 Because this technique has been adopted by a growing number of institutions worldwide, the American Society of Neuroradiology (ASNR) Vessel Wall Imaging Study Group was developed to disseminate vessel wall imaging techniques, educate the general neuroradiology community on its implementation and interpretation, and influence vendors to improve vessel wall imaging techniques. Intracranial vessel wall MR imaging (MR-VWI) is capable of detecting, 1, 2 differentiating, 3 ⇓- 5 and characterizing intracranial vasculopathies 6 ⇓- ⇓ ⇓ 10 and may be able to help predict patient outcomes. Ordering providers most frequently inquiring about vessel wall MR imaging were from stroke neurology (56.5%) and neurosurgery (25.1%), while 34.3% indicated that no providers had inquired.ĪBBREVIATIONS: ASNR American Society of Neuroradiology IP Internet Protocol MR-VWI vessel wall MR imaging If technical/expertise obstacles were overcome, 56.4% of those not performing vessel wall MR imaging indicated that they would perform it. For those not performing vessel wall MR imaging, interpretation (53.1%) or technical (46.4%) expertise, knowledge of applications (50.5%), or limitations of clinician (56.7%) or radiologist (49.0%) interest were the most common reasons. Vasculopathy differentiation (94.4%), cryptogenic stroke (41.3%), aneurysm (38.0%), and atherosclerosis (37.6%) evaluation were the most common indications. Protocols most commonly included were T1-weighted pre- and postcontrast and TOF-MRA 60.6% had limited contributions from vendors or were still in protocol development. Fifty-two percent indicated that their institution performs vessel wall MR imaging, with 71.5% performed at least 1–2 times/month, most frequently on 3T MR imaging, and 87.7% using 3D sequences. The patient will also be able to see outside of the scanner's walls, which increases the feeling of openness.RESULTS: There were 532 responses 79 were excluded due to nonresponse and 42 due to redundant institutional responses, leaving 411 responses. This will benefit those who may be anxious due to claustrophobia. To encourage a soothing environment, the examination room can be filled with calming ambient lighting, relaxing music and comforting images on the walls. If a child is especially nervous or anxious about the procedure, having a parent by his side can help to reduce stress and create a calming experience. The large width of the open MRI scanner will allow parents to lie next to their child during the test. There are many features of this advanced scanner which will benefit patients who are children, claustrophobic, and obese. This will be determined prior to testing. It is important to note that some tests may require a more traditional scanner. It is perfect for bariatric, pediatric and orthopedic imaging. In addition to the enhanced physical features, it provides excellent image quality. The increased size will accommodate people weighing up to 550 pounds. This wide open scanner is three times larger than a traditional MRI and is open on three sides. The wide open MRI takes the concept of open MRI to new heights improving on MRI technology and capabilities.
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