Persistent Nephrogram on Abdominal Radiography and Computed Tomography

Persistent nephrogram on abdominal radiography and computed tomography.

A 51-year-old Japanese man presenting with acute abdomen was admitted to our hospital. Contrast-enhanced computed tomography (CT) led to a diagnosis of gastroenteritis on admission (Picture 1A). Contrast-induced oliguric acute kidney injury followed by septic shock developed, and the serum creatinine level rose from 0.98 mg/dL to 5.07 mg/dL, requiring temporary hemodialysis. Kidney-shaped enhan...

Persistent Nephrogram

An 81-year-old man with chronic kidney disease, hypertension, and aortic stenosis was admitted with a fever and nausea. Computed tomography (CT) of the abdomen with intravenous administration of iodixnanol was performed on the day of admission at another hospital (Picture 1). One day later, unenhanced CT of the abdomen was repeated, showing a striking enhancement of the renal parenchyma of both...

Abdominal perfusion computed tomography.

The purpose of this article is to provide an up to date review on the spectrum of applications of perfusion computed tomography (CT) in the abdomen. New imaging techniques have been developed with the objective of obtaining a structural and functional analysis of different organs. Recently, perfusion CT has aroused the interest of many researchers who are studying the applicability of imaging m...

Heavy-ion Radiography and Heavy-ion Computed Tomography

A computed tomography implementation of multiple-image radiography.

Conventional x-ray computed tomography (CT) produces a single volumetric image that represents the spatially variant linear x-ray attenuation coefficient of an object. However, in many situations, differences in the x-ray attenuation properties of soft tissues are very small and difficult to measure in conventional x-ray imaging. In this work, we investigate an analyzer-based imaging method, ca...