Intravenous arteriography using scanned projection radiography

Radiology
W R BrodyL S Edelheit

Abstract

Visualization of arteries using intravenous injections of contrast material requires an imaging system capable of (a) excellent sensitivity to dilute concentrations of contrast media and (b) adequate temporal resolution to minimize the effects of motion during the exposure. A line-scanned radiography system based on a CT fan-beam detector (high-pressure xenon ionization chamber) was used for phantom and animal studies of intravenous arteriography to demonstrate the potential advantages of this method. Even though line-scanned systems require long scan times compared to existing radiographic methods, they are capable of showing rapidly moving arteries without blurring. Concentrations of 3 mg/ml of iodine could be seen in vessels 2 mm in diameter. Phantom studies using kVp switching showed that bone or soft tissue could be selectively cancelled.

Citations

Jul 3, 2015·Journal of Synchrotron Radiation·Rajmund Mokso, Peter Oberta
Jan 1, 1982·IEEE Transactions on Medical Imaging·S J Riederer
Jul 1, 1986·Computerized Radiology : Official Journal of the Computerized Tomography Society·M TakahashiY Higashida
Mar 19, 2005·Physics in Medicine and Biology·Anna SarnelliAlberto Bravin

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