CT during arterial portography for the preoperative evaluation of hepatic tumors: how, when, and why?

AJR. American Journal of Roentgenology
P SoyerE K Fishman

Abstract

CT during arterial portography (CTAP) is the most sensitive technique for the detection of intrahepatic tumors. CTAP is based on portal enhancement of the liver by infusion of contrast material through the superior mesenteric artery. This technique provides clear delineation of intrahepatic vessels, allowing segmental location of tumors to be accurately determined and relationships between tumors and intrahepatic vessels to be assessed. CTAP must be limited to patients for whom noninvasive preoperative imaging examinations have shown a potential for hepatic resection. In the majority of the cases, CTAP is performed in patients with hepatic metastases from colorectal cancer, but other types of tumor (either primary or secondary) may be an indication for CTAP. Visualization of nontumorous perfusion defects is a limitation of this technique, but such defects have been well described and have characteristic locations and appearance. In difficult cases, correlation with sonographic, CT, and MR imaging findings helps characterize portal perfusion defects. CTAP data can be viewed as multiplanar and three-dimensional reconstructions that allow preoperative planning of the extent of resection and determination of the volume of the remai...Continue Reading

Citations

Jan 5, 1999·Liver Transplantation and Surgery : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society·M A Choti, G B Bulkley
May 29, 2007·Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract·Timothy M Pawlik, Michael A Choti
Dec 2, 1999·European Journal of Radiology·A Poyanli, S Sencer
Oct 2, 1998·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·O ClémentG Frija
Sep 11, 1999·Journal of Gastroenterology and Hepatology·C Frazer
Mar 4, 2000·AJR. American Journal of Roentgenology·G T SicaP R Ros
Mar 10, 2001·Journal of Computer Assisted Tomography·D ChoiI W Choo
Apr 1, 1998·Radiologic Clinics of North America·S R KemmererP R Ros
Apr 6, 2002·Clinics in Liver Disease·Hoon Ji, Pablo R Ros
Sep 8, 1998·Seminars in Surgical Oncology·D J Vining
Mar 1, 1996·Journal of Magnetic Resonance Imaging : JMRI·P Soyer, J P Laissy
Apr 6, 2002·Clinics in Liver Disease·Gregory T SicaPablo R Ros

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.