Dual Phase Hepatic CT: Influence of Scanning Direction on Liver Attenuation

• Published in: American journal of roentgenology (1976) Vol. 174; no. 5; pp. 1417 - 1421
• Main Authors: O'Riordan, E, Craven, C. M, Wilson, D, Robinson, P. J
• Format: Journal Article
• Language: English
• Published: Leesburg, VA Am Roentgen Ray Soc 01.05.2000; American Roentgen Ray Society
• Subjects: Adult; Aged; Biological and medical sciences; Colorectal Neoplasms - diagnostic imaging; Contrast Media - administration & dosage; Digestive system; Female; Humans; Injections, Intravenous; Investigative techniques, diagnostic techniques (general aspects); Liver - diagnostic imaging; Male; Medical sciences; Middle Aged; Radiodiagnosis. Nmr imagery. Nmr spectrometry; Tomography, X-Ray Computed - methods; Human; Rectal disease; Radiodiagnosis; Liver; Malignant tumor; Image; Acquisition; Colonic disease; Image analysis; Dual phase structure; Rectum; Digestive diseases; Medical imagery; Intestinal disease; Attenuation; Influence; Helical structure; Computerized axial tomography; Colon; Technique

We measured changes in hepatic attenuation during arterial and portal phase acquisition of hepatic CT in the craniocaudal and caudocranial directions. In 10 of 20 patients undergoing dual phase helical CT during staging for colorectal cancer, images in both phases were obtained in the craniocaudal d...