{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T01:53:10Z","timestamp":1778205190186,"version":"3.51.4"},"reference-count":20,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2023,2,18]],"date-time":"2023-02-18T00:00:00Z","timestamp":1676678400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["aapm.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>To evaluate the image quality, dosimetric properties, setup reproducibility, and planar cine motion detection of a high\u2010resolution brain coil and integrated stereotactic brain immobilization system that constitute a new brain treatment package (BTP) on a low\u2010field magnetic resonance imaging (MRI) linear accelerator (MR\u2010linac). Image quality of the high\u2010resolution brain coil was evaluated with the 17\u00a0cm diameter spherical phantom and the American College of Radiology (ACR) Large MRI Phantom. Patient imaging studies approved by the institutional review board (IRB) assisted in selecting image acquisition parameters. Radiographic and dosimetric evaluation of the high\u2010resolution brain coil and the associated immobilization devices was performed using dose calculations and ion chamber measurements. End\u2010to\u2010end testing was performed simulating a cranial lesion in a phantom. Inter\u2010fraction setup variability and motion detection tests were evaluated on four healthy volunteers. Inter\u2010fraction variability was assessed based on three repeat setups for each volunteer. Motion detection was evaluated using three\u2010plane (axial, coronal, and sagittal) MR\u2010cine imaging sessions, where volunteers were asked to perform a set of specific motions. The images were post\u2010processed and evaluated using an\u00a0in\u2010house program. Contrast resolution of the high\u2010resolution brain coil is superior to the head\/neck and torso coils. The BTP receiver coils have an average HU value of 525 HU. The most significant radiation attenuation (3.14%) of the BTP, occurs through the lateral portion of the overlay board where the high\u2010precision lateral\u2010profile mask clips attach to the overlay. The greatest inter\u2010fraction setup variability occurred in the pitch (average 1.08 degree) and translationally in the superior\/inferior direction (average 4.88\u00a0mm). Three plane cine imaging with the BTP was able to detect large and small motions. Small voluntary motions, sub\u2010millimeter in magnitude (maximum 0.9\u00a0mm), from motion of external limbs were detected. Imaging tests, inter\u2010fraction setup variability, attenuation, and end\u2010to\u2010end measurements were quantified and performed for the BTP. Results demonstrate better contrast resolution and low contrast detectability that allows for better visualization of soft tissue anatomical changes relative to head\/neck and torso coil systems.<\/jats:p>","DOI":"10.1002\/acm2.13919","type":"journal-article","created":{"date-parts":[[2023,2,18]],"date-time":"2023-02-18T18:46:39Z","timestamp":1676745999000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Commissioning, clinical implementation, and initial experience with a new brain tumor treatment package on a low\u2010field MR\u2010linac"],"prefix":"10.1002","volume":"24","author":[{"given":"Karen Chin","family":"Snyder","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology Henry Ford Health  Detroit Michigan USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weihua","family":"Mao","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology Henry Ford Health  Detroit Michigan USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joshua P.","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology Henry Ford Health  Detroit Michigan USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Justine","family":"Cunningham","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology Henry Ford Health  Detroit Michigan USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Indrin J.","family":"Chetty","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology Henry Ford Health  Detroit Michigan USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Salim M.","family":"Siddiqui","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology Henry Ford Health  Detroit Michigan 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