Abdominal CT

Overview

Abdominal CT provides detailed evaluation of organs and vasculature. It is used for trauma infection and oncologic staging. Contrast enhancement improves lesion detection.

Liver Imaging

CT characterizes liver lesions and assesses vascular anatomy. Multiphasic protocols improve detection of hepatocellular carcinoma. CT complements ultrasound and MRI in liver evaluation.

Bowel Imaging

CT enterography evaluates inflammatory bowel disease and small bowel tumors. It provides luminal and extraluminal assessment. Oral and IV contrast protocols optimize visualization.

Renal and Adrenal

CT assesses renal masses stones and adrenal lesions. It guides interventional procedures and surgical planning. Functional assessment may require additional imaging.

MR Angiography MRA

Overview

MRA uses flow sensitive sequences or gadolinium contrast to depict vascular anatomy and flow characteristics without ionizing radiation.

Technique

Time of flight phase contrast and contrast enhanced MRA each have strengths for different vascular territories.

Clinical Uses

Cerebral carotid renal and peripheral vascular assessment and evaluation of vascular malformations.

Limitations and Safety

Gadolinium risks in severe renal impairment and lower spatial resolution than CTA in some settings.