Purpose In contrast enhanced imaging, a contrast agent is introduced into the anatomy of a patient, typicaⅡy by way of an intravenous or intra-arterial injection. FoⅡowing a delay which aⅡows the contrast agent to reach a region of interest(ROI)...
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https://www.riss.kr/link?id=A105245415
2010
-
512.151
KCI등재후보
학술저널
21-26(6쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Purpose In contrast enhanced imaging, a contrast agent is introduced into the anatomy of a patient, typicaⅡy by way of an intravenous or intra-arterial injection. FoⅡowing a delay which aⅡows the contrast agent to reach a region of interest(ROI)...
Purpose In contrast enhanced imaging, a contrast agent is introduced into the anatomy of a patient, typicaⅡy by way of an intravenous or intra-arterial injection. FoⅡowing a delay which aⅡows the contrast agent to reach a region of interest(ROI) of the patient’s anatomy, a scan of the region is initiated. A bolus tracking scan is coordinated to coincide with the presence of the contrast agent at the ROI, as scanning either too early or too late can result in less dian optimal enhancement, and possibly require that the patient be rescanned. To achieve standard contrast enhancement appropriately throughout the location of the target vessels, this study was undertaken the locator placed in the descending aorta for the brain computed tomographic angiography(CTA). Materials and methods The study was conducted using brain CTA for patients who presented at our hospital from November 2009 to February 2010. Optimization of bolus timing was used at a place of the locator in the descending aorta via a 64-detector row CT brain angiography. Results When compared place descending aorta in the locator with internal carotid artery and random locator around avoiding the neck vessels, descending aorta in the locator more contrast enhancement. So the cases reduce probability protect missing the enhancement time and the target regions and increasing three-dimensional processing time. Conclusion This study is reduced that more insufficient arterial contrast or excessⅣe venous enhancement, which can be placed of a locator in the descending artery. And that is good arterial contrast with little venous contamination. Our investigation provides to the optimal enhance time product by merging the three-dimensional representations of circle of wiⅡis portion and common carotid artery bifurcation more than valuable diagnostic images for helpful diagnosis and therapy using optimal enhancement according to change of locator in brain CTA.
목차 (Table of Contents)
가상 대장내시경 Computed Tomography에서 대장이 팽창되지 않은 환자를 대상으로 진경제 사용의 유용성
Rando 팬텀을 이용한 Multi-detector Computed Tomography의 Automatic Exposure Control 특성 평가
IV Catheter Gauge에 따른 PSI 유용성 평가
Iodine 조영제의 부작용 감소를 위한 프로토콜 변경 전후의 사례 분석