{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,3,19]],"date-time":"2025-03-19T16:47:00Z","timestamp":1742402820710},"reference-count":16,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"5","license":[{"start":{"date-parts":[[2024,5,1]],"date-time":"2024-05-01T00:00:00Z","timestamp":1714521600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,5,1]]},"abstract":"<jats:sec>\n<jats:title>OBJECTIVE<\/jats:title>\n<jats:p>The objective of this study was the preclinical design and construction of a flexible intrasphenoid coil aiming for submillimeter resolution of the human pituitary gland.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>METHODS<\/jats:title>\n<jats:p>Sphenoid sinus measurements determined coil design constraints for use in &gt; 95% of adult patients. Temperature safety parameters were tested. The 2-cm-diameter coil prototype was positioned in the sphenoid sinus of cadaveric human heads utilizing the transnasal endoscopic approach that is used clinically. Signal-to-noise ratio (SNR) was estimated for the transnasal coil prototype compared with a standard clinical head coil. One cadaveric pituitary gland was explanted and histologically examined for correlation to the imaging findings.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>RESULTS<\/jats:title>\n<jats:p>With the coil positioned directly atop the sella turcica at a 0\u00b0 angle of the B<jats:sub>0<\/jats:sub> static field, the craniocaudal distance (21.2 \u00b1 0.8 mm) was the limiting constraint. Phantom experiments showed no detectable change in temperature at two sites over 15 minutes. The flexible coil was placed transnasally in cadaveric specimens using an endoscopic approach. The image quality was subjectively superior at higher spatial resolutions relative to that with the commercial 20-channel head coil. An average 17-fold increase in the SNR was achieved within the pituitary gland. Subtle findings visualized only with the transnasal coil had potential pathological correlation with immunohistochemical findings.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>CONCLUSIONS<\/jats:title>\n<jats:p>A transnasal radiofrequency coil feasibly provides a 17-fold boost in the SNR at 3 T. The ability to safely improve the quality of pituitary imaging may be helpful in the identification and subsequent resection of small functional pituitary lesions.<\/jats:p>\n<\/jats:sec>","DOI":"10.3171\/2023.7.jns231096","type":"journal-article","created":{"date-parts":[[2023,11,4]],"date-time":"2023-11-04T01:26:26Z","timestamp":1699061186000},"page":"1262-1269","source":"Crossref","is-referenced-by-count":2,"title":["Flexible in-cavity MRI receiving coil for ultra\u2013high-resolution imaging of the pituitary gland"],"prefix":"10.3171","volume":"140","author":[{"given":"Siyuan","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Electrical and Computer Engineering, Samueli School of Electrical and Computer Engineering, University of California, Los Angeles;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kunal S.","family":"Patel","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles;"},{"name":"Department of Radiological Sciences, Brain Tumor Imaging Laboratory, University of California, Los Angeles;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sophie","family":"Peeters","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiahao","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering, Samueli School of Electrical and Computer Engineering, University of California, Los Angeles;"},{"name":"Departments of Radiological Sciences and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aislyn C.","family":"DiRisio","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Harry V.","family":"Vinters","sequence":"additional","affiliation":[{"name":"Pathology, University of California, Los Angeles; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rob N.","family":"Candler","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering, Samueli School of Electrical and Computer Engineering, University of California, Los Angeles;"},{"name":"California NanoSystems Institute, Los Angeles, California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kyunghyun","family":"Sung","sequence":"additional","affiliation":[{"name":"Departments of Radiological Sciences and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marvin","family":"Bergsneider","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles;"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"3","key":"b1","series-title":"J Neurosurg","first-page":"531","article-title":"Outcome of using the histological pseudocapsule as a surgical capsule in Cushing disease","volume":"111","author":"Jagannathan J","year":"2009","unstructured":"Jagannathan J, Smith R, DeVroom HL,  Outcome of using the histological pseudocapsule as a surgical capsule in Cushing disease. J Neurosurg. 2009;111(3):531\u2013539."},{"issue":"4","key":"b2","series-title":"Neurosurg Clin N Am","first-page":"529","article-title":"Imaging the pituitary and parasellar region","volume":"23","author":"Hess CP","year":"2012","unstructured":"Hess CP, Dillon WP. Imaging the pituitary and parasellar region. Neurosurg Clin N Am. 2012;23(4):529\u2013542."},{"issue":"4","key":"b3","series-title":"Neurosurgery","first-page":"E524","article-title":"Congress of Neurological Surgeons systematic review and evidence-based guideline on preoperative imaging assessment of patients with suspected nonfunctioning pituitary adenomas","volume":"79","author":"Chen CC","year":"2016","unstructured":"Chen CC, Carter BS, Wang R,  Congress of Neurological Surgeons systematic review and evidence-based guideline on preoperative imaging assessment of patients with suspected nonfunctioning pituitary adenomas. Neurosurgery. 2016;79(4):E524\u2013E526."},{"issue":"4","key":"b4","series-title":"Pituitary","first-page":"551","article-title":"Surgical strategies in the treatment of MR-negative Cushing\u2019s Disease: a systematic review and treatment algorithm","volume":"25","author":"Yang AB","year":"2022","unstructured":"Yang AB, Henderson F Jr, Schwartz TH. Surgical strategies in the treatment of MR-negative Cushing\u2019s Disease: a systematic review and treatment algorithm. Pituitary. 2022;25(4):551\u2013562."},{"key":"b5","series-title":"Brain Spine","first-page":"100917","article-title":"Update in Cushing disease: What the neurosurgeon has to KNOW, on behalf of the EANS skull base section","volume":"2","author":"Eulate-Beramendi S","year":"2022","unstructured":"Eulate-Beramendi S, Casaj\u00fas A, Ollero L,  Update in Cushing disease: What the neurosurgeon has to KNOW, on behalf of the EANS skull base section. Brain Spine. 2022;2:100917."},{"issue":"5","key":"b6","series-title":"J Neurosurg","first-page":"1260","article-title":"Negative surgical exploration in patients with Cushing\u2019s disease: benefit of two-thirds gland resection on remission rate and a review of the literature","volume":"129","author":"Carr SB","year":"2018","unstructured":"Carr SB, Kleinschmidt-DeMasters BK, Kerr JM, Kiseljak-Vassiliades K, Wierman ME, Lillehei KO. Negative surgical exploration in patients with Cushing\u2019s disease: benefit of two-thirds gland resection on remission rate and a review of the literature. J Neurosurg. 2018;129(5):1260\u20131267."},{"issue":"11","key":"b7","series-title":"Acta Neurochir (Wien)","first-page":"3161","article-title":"Lateral one-third gland resection in Cushing patients with failed adenoma identification leads to low remission rates: long-term observations from a small, single-center cohort","volume":"163","author":"Andereggen L","year":"2021","unstructured":"Andereggen L, Mariani L, Beck J,  Lateral one-third gland resection in Cushing patients with failed adenoma identification leads to low remission rates: long-term observations from a small, single-center cohort. Acta Neurochir (Wien). 2021;163(11):3161\u20133169."},{"issue":"2","key":"b8","series-title":"J Neurosurg","first-page":"347","article-title":"Value of pituitary gland MRI at 7 T in Cushing\u2019s disease and relationship to inferior petrosal sinus sampling: case report","volume":"130","author":"Law M","year":"2019","unstructured":"Law M, Wang R, Liu CSJ,  Value of pituitary gland MRI at 7 T in Cushing\u2019s disease and relationship to inferior petrosal sinus sampling: case report. J Neurosurg. 2019;130(2):347\u2013351."},{"issue":"1","key":"b9","series-title":"Phys Med Biol","first-page":"217","article-title":"Estimating achievable signal-to-noise ratios of MRI transmit-receive coils from radiofrequency power measurements: applications in quality control","volume":"45","author":"Redpath TW","year":"2000","unstructured":"Redpath TW, Wiggins CJ. Estimating achievable signal-to-noise ratios of MRI transmit-receive coils from radiofrequency power measurements: applications in quality control. Phys Med Biol. 2000;45(1):217\u2013227."},{"issue":"6","key":"b10","series-title":"Curr Opin Neurol","first-page":"605","article-title":"Advances in ultra-high field MRI for the clinical management of patients with brain tumors","volume":"24","author":"Lupo JM","year":"2011","unstructured":"Lupo JM, Li Y, Hess CP, Nelson SJ. Advances in ultra-high field MRI for the clinical management of patients with brain tumors. Curr Opin Neurol. 2011;24(6):605\u2013615."},{"issue":"8","key":"b11","series-title":"Neuroradiology","first-page":"1051","article-title":"Ultra-high field magnetic resonance imaging for localization of corticotropin-secreting pituitary adenomas","volume":"62","author":"Patel V","year":"2020","unstructured":"Patel V, Liu CJ, Shiroishi MS,  Ultra-high field magnetic resonance imaging for localization of corticotropin-secreting pituitary adenomas. Neuroradiology. 2020;62(8):1051\u20131054."},{"issue":"6","key":"b12","series-title":"J Neurosurg","first-page":"1451","article-title":"Endosphenoidal coil for intraoperative magnetic resonance imaging of the pituitary gland during transsphenoidal surgery","volume":"125","author":"Chittiboina P","year":"2016","unstructured":"Chittiboina P, Talagala SL, Merkle H,  Endosphenoidal coil for intraoperative magnetic resonance imaging of the pituitary gland during transsphenoidal surgery. J Neurosurg. 2016;125(6):1451\u20131459."},{"issue":"5","key":"b13","series-title":"J Magn Reson Imaging","first-page":"650","article-title":"Temperature and SAR calculations for a human head within volume and surface coils at 64 and 300 MHz","volume":"19","author":"Collins CM","year":"2004","unstructured":"Collins CM, Liu W, Wang J,  Temperature and SAR calculations for a human head within volume and surface coils at 64 and 300 MHz. J Magn Reson Imaging. 2004;19(5):650\u2013656."},{"issue":"suppl 1","key":"b14","series-title":"Radiologe","first-page":"40","article-title":"MR safety assessment of active implantable medical devices","volume":"59","author":"Aissani S","year":"2019","unstructured":"Aissani S, Laistler E, Felblinger J. MR safety assessment of active implantable medical devices. Radiologe. 2019;59(suppl 1):40-45."},{"issue":"1","key":"b15","series-title":"Skull Base","first-page":"9","article-title":"Anatomic variations of the sphenoid sinus and their impact on trans-sphenoid pituitary surgery","volume":"18","author":"Hamid O","year":"2008","unstructured":"Hamid O, El Fiky L, Hassan O, Kotb A, El Fiky S. Anatomic variations of the sphenoid sinus and their impact on trans-sphenoid pituitary surgery. Skull Base. 2008;18(1):9\u201315."},{"issue":"12619","key":"b16","series-title":"IEEE Access","first-page":"12628","article-title":"A miniature flexible coil for high-SNR MRI of the pituitary gland","volume":"10","author":"Lin JH","year":"2022","unstructured":"Lin JH, Liu SY, Bergsneider M,  A miniature flexible coil for high-SNR MRI of the pituitary gland. 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