{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T10:47:53Z","timestamp":1777891673983,"version":"3.51.4"},"reference-count":17,"publisher":"SAGE Publications","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["XST"],"published-print":{"date-parts":[[2022,1,22]]},"abstract":"<jats:p>OBJECTIVE: To invastgate feasibility of low-dose contrast agent in cerebral computed tomography angiography (CTA) to alleviate side effects. METHOD: Siemens\u2019 Somatom Definition AS+CT scanner, Heine\u2019s blood pressure monitor G7-M237 (BP cuff) and Ultravist contrast agent (370\u200amg Iodine\/ml) are used. CTA is acquired using following scan parameters including slice thickness of 1mm, image acquisition parameters of 128\u00d70.6\u200amm, pitch size of 0.8\u200amm, 175 effective mAs, 120\u200akVp tube voltage, scan delay time of 3 seconds, and the scan time of 4 seconds. This study is conducted by securing the IV route in the left antecubital vein before injection of contrast agent, wrapping BP cuff around the branchial artery of the opposite right arm after setting the pressure to 200\u200ammHg. Then, the injection rate of the contrast agent is fixed at 4.5\u200acc\/sec and contrast agent was injected in three different amounts (70, 80, and 100\u200acc). Bp cuff is released from this moment when HU value reachs 100. RESULT: In this study, the mean HU values measured from common carotid artery are 412.45\u00b15.89 when injecting 80cc contrast agent and using BP cuff and 399.64\u00b15.51 when injecting 100\u200acc contrast agenet and not using BP cuff, respectively. In middle cerebral artery M1, the mean HU values are 325.23\u00b138.29 when injecting 80cc contrast agent and using BP cuff and 325.00\u00b130.63 when injecting 100cc contrast agent blood and not using pressure cuff, respectively. Difference of mean HU values is not statistically significant (p\u200a&gt;\u200a0.05) with and without using BP cuff. CONCLUSION: This study demonstrates that reducing amount of contrast agent is possible when the right brachial artery is compressed using BP cuff. Study results indicate that reducing 20% injection of contrast agent in CT cerebrovascular angiography can still yield comparable imaging results with conventional contrast angent usage, which implies that less side effects are expected with a contrast agent injection. Thus, this study can serve as a reference for potential reducing side effect during CT cerebrovascular angiography.<\/jats:p>","DOI":"10.3233\/xst-211022","type":"journal-article","created":{"date-parts":[[2021,11,19]],"date-time":"2021-11-19T11:26:14Z","timestamp":1637321174000},"page":"135-144","source":"Crossref","is-referenced-by-count":0,"title":["Reducing amount of contrast agent after compression of right brachial artery using a blood pressure cuff in computed tomography cerebrovascular angiography"],"prefix":"10.1177","volume":"30","author":[{"given":"Gyeong Rip","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Pusan National University Yang-san Hospital, Pusan National University School of Medicine, Yang-san, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sungho","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soon Ki","family":"Sung","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Pusan National University Yang-san Hospital, Pusan National University School of Medicine, Yang-san, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chang Hyeun","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Pusan National University Yang-san Hospital, Pusan National University School of Medicine, Yang-san, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sang Bong","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Hospital and Social cooperation, Good Gangan Hospital, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jang Seon","family":"Yoo","sequence":"additional","affiliation":[{"name":"Department of Radiology, Pusan National University Yang-san Hospital, Yang-san, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jong Hyeok","family":"Kwak","sequence":"additional","affiliation":[{"name":"Department of Radiology, Pusan National University Yang-san Hospital, Yang-san, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","reference":[{"key":"10.3233\/XST-211022_ref1","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1097\/RLI.0b013e31823076a4","article-title":"Cerebral computed tomography angiography using a low tube voltage (80kVp) and a moderate concentration of iodine contrast material: a quantitative and qualitative comparison with conventional computed tomography angiography","volume":"47","author":"Cho","year":"2012","journal-title":"Investigative Radiology"},{"key":"10.3233\/XST-211022_ref2","doi-asserted-by":"crossref","first-page":"7661","DOI":"10.1021\/ja071471p","article-title":"Antibiofouling polymer-coated gold nanoparticles as a contrast agent for in vivo X-ray computed tomography imaging","volume":"129","author":"Kim","year":"2007","journal-title":"Journal of the American Chemical Society"},{"key":"10.3233\/XST-211022_ref3","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1177\/028418517501600204","article-title":"Metrizamide-phenothiazine interaction: report of a case with seizures following myelography","volume":"16","author":"Hindmarsh","year":"1975","journal-title":"Acta Radiologica. 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