Assessment of pulmonary arterial enhancement on CT pulmonary angiography using a leg vein for contrast media administration.

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From: Medicine(Vol. 96, Issue 48)
Publisher: Lippincott Williams & Wilkins, WK Health
Document Type: Disease/Disorder overview
Length: 380 words

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Byline: Cherry Kim, Department of Radiology and the Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul Department of Radiology, Ansan Hospital, Korea University College of Medicine, Ansan-si, Gyeonggi Department of Healthcare Management, Cheongju University, Cheongju, South Korea.; Choong Wook Lee; Gil-Sun Hong; Gihong Kim; Ki Yeol Lee; Sung-Soo Kim Abstract The purpose of our study was to compare pulmonary artery (PA) enhancement according to venous routes of contrast media (CM) administration in patients who underwent CT pulmonary angiography (CTPA) in the emergency department (ED).This retrospective study reviewed the CTPAs of 24 patients who administered CM via leg veins (group A) and 72 patients via arm veins (group B) with age and gender matching at a ratio of 1:3. Clinical data, aorta attenuation (Aoatten), and PA attenuation (PAatten) were compared between group A and B. Each group was subcategorized into diagnostic and nondiagnostic CTPA subgroups, with a threshold of 250ÇèHU at the PA. Then, clinical data, rates of pulmonary embolism (PE), and right ventricle (RV) strain were compared. In group A, the relationship between the narrowest suprahepatic IVC area (IVCarea) and the attenuation ratio of the RV to the intrahepatic IVC (RV/IVCatten) was evaluated.Aoatten (236.6ÇèHU vs 293.1ÇèHU, PÇè

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Gale Document Number: GALE|A671664826