hepar image anatomical information, HU score, bolus tracking technique.
نویسندگان
چکیده
منابع مشابه
automatic bolus tracking versus fixed time-delay technique in biphasic multidetector computed tomography of the abdomen
conclusions the automatic bolus-tracking method, results in higher contrast enhancement of the aorta and spleen at the portal phase, but has no effect on liver enhancement. however, bolus tracking is associated with reduced variability for liver enhancement among different patients. results forty-eight patients (23 male, 25 female, mean age=56.4±13.5 years) were included. the contrast enhanceme...
متن کاملAutomatic Bolus Tracking Versus Fixed Time-Delay Technique in Biphasic Multidetector Computed Tomography of the Abdomen
BACKGROUND Bolus tracking can individualize time delay for the start of scans in spiral computed tomography (CT). OBJECTIVES We compared automatic bolus tracking method with fixed time-delay technique in biphasic contrast enhancement during multidetector CT of abdomen. PATIENTS AND METHODS Adult patients referred for spiral CT of the abdomen were randomized into two groups; in group 1, the ...
متن کاملOptimising the scan delay for arterial phase imaging of the liver using the bolus tracking technique
OBJECTIVE To optimize the delay time before the initiation of arterial phase scan in the detection of focal liver lesions in contrast enhanced 5 phase liver CT using the bolus tracking technique. PATIENTS AND METHODS Delay - the interval between threshold enhancement of 100 hounsfield unit (HU) in the abdominal aorta and commencement of the first arterial phase scan. Using a 16 slice CT scann...
متن کاملCerebral perfusion imaging by bolus tracking.
Cerebral perfusion may be visualized by the dynamic imaging of an intravenously injected bolus (a few milliliters) of clinically approved gadolinium-containing contrast media. During its passage through the vasculature of the brain, the contrast agent induces magnetic field disturbances, which can be seen as signal loss on appropriately weighted dynamic MRI. This article deals with the quantita...
متن کاملQuantification Issues in Bolus-Tracking Perfusion MRI
Bolus-tracking perfusion MRI is based on the monitoring of the first passage of a bolus of contrast agent through the brain tissue and a brain-feeding artery. The contrast agent is injected rapidly in the antecubital vein in the patients arm by means of an MR-compatible power injector. This bolus of contrast agent is pushed in the direction of the heart by means of a saline flush. Continuous dy...
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ژورنال
عنوان ژورنال: Jurnal Imejing Diagnostik (JImeD)
سال: 2015
ISSN: 2621-7457,2356-301X
DOI: 10.31983/jimed.v1i2.3162