Evaluating The Image Quality Of Monoenergetic Images From Dual-Energy Computed Tomography With Low-Concentration And Low-Flow-Rate Contrast Media For The Arterials Supply To The Nipple-Areola Complex In Breast Cancer Compared With Conventional Computed Tomography Angiography
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY(2020)
Abstract
ObjectiveThe objective of this study was to evaluate the image quality of monoenergetic images (MEIs (+)) acquired from dual-energy computed tomography with low-concentration and low-flow-rate contrast media for the arterial supply to the nipple-areola complex (NAC) in breast cancer compared with conventional computed tomography angiography (CTA). MethodsWe enrolled 25 patients (MEI (+)(300) group, 300 mg/mL and 2.5 mL/s of contrast media) and 23 patients (CTA(370) group, 370 mg/mL and 3.5 mL/s of contrast media) for assessing NAC blood supply angiography. The image quality of the 2 groups was evaluated objectively and subjectively. ResultsThe 40 keV MEI (+)(300) demonstrated higher attenuation and contrast-to-noise ratio than CTA(370) group (P < 0.001). The subjective image quality and visualization of the arteries were comparable between 2 groups. ConclusionsThe 40 keV MEI (+)(300) acquired from dual-energy computed tomography can achieve comparable image quality of arterial supply to NAC with low-concentration and low-flow-rate contrast media in breast cancer compared with CTA(370).
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Key words
dual-energy CT, CT angiography, monoenergetic image, nipple-areola complex
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