Open AccessCurrent status of low dose multi-detector CT in the urinary tract
Author(s) -
Mi Kim Sung,
Sarabjeet Singh,
Mannudeep K. Kalra
Publication year - 2011
Publication title -
world journal of radiology
Language(s) - English
Resource type - Journals
ISSN - 1949-8470
DOI - 10.4329/wjr.v3.i11.256
Subject(s) - medicine , urinary system , radiation dose , ionizing radiation , radiology , coronal plane , angiography , nuclear medicine , irradiation , physics , nuclear physics
Over the past several years, advances in the technical domain of computed tomography (CT) have influenced the trend of imaging modalities used in the clinical evaluation of the urinary system. Renal collecting systems can be illustrated more precisely with the advent of multi-detector row CT through thinner slices, high speed acquisitions, and enhanced longitudinal spatial resolution resulting in improved reformatted coronal images. On the other hand, a significant increase in exposure to ionizing radiation, especially in the radiosensitive organs, such as the gonads, is a concern with the increased utilization of urinary tract CT. In this article, we discuss the strategies and techniques available for reducing radiation dose for a variety of urinary tract CT protocols with metabolic clinical examples. We also reviewed CT for hematuria evaluation and related scan parameter optimization such as, reducing the number of acquisition phases, CT angiography of renal donors and lowering tube potential, when possible.