Technical report: coaxial catheter: a new technique for sequential spiral CT during arterial portography and hepatic arteriography

Clinical Radiology
O AbeY Sasaki

Abstract

To evaluate a coaxial catheter method to sequentially acquire spiral-computed tomography (CT) during arterial portography (CTAP) and hepatic arteriography (CTA) at a single transfer. Sixteen patients with malignant hepatic tumours (12 patients with hepatocellular carcinoma, four with metastases) were studied using spiral CT. Depending upon the vascular anatomy revealed by conventional coeliac and superior mesenteric arteriography, an outer and inner catheter were selectively placed to perform CTA and CTAP, respectively. CTAP images were obtained first, while injecting contrast material through an inner catheter followed by the acquisition of the CTA images during injection through an outer catheter. In three patients, the resected specimens were available for comparison with the imaging findings. In 12 patients with standard hepatic arterial anatomy, high quality images of CTAP and CTA were obtained. More lesions were detected by the combination of CTAP and CTA than by CTAP or CTA alone in five patients. In one patient with breast carcinoma and a left hepatic artery arising from the left gastric artery, numerous hepatic metastases were delineated on both sets of images. In three patients with replaced or accessory right hepatic...Continue Reading

References

Jul 1, 1990·AJR. American Journal of Roentgenology·K TakayasuS Hirohashi
Apr 1, 1995·AJR. American Journal of Roentgenology·K TakayasuS Hirohashi
Feb 1, 1993·Radiology·D A Bluemke, E K Fishman

❮ Previous
Next ❯

Related Concepts

Related Feeds

Breast Invasive Carcinoma

Invasive breast cancers indicate a spread into breast tissues and lymph nodes. Here are the latest discoveries pertaining to breast invasive carcinomas.

Carcinoma, Hepatocellular

Hepatocellular Carcinoma is a malignant cancer in liver epithelial cells. Discover the latest research on Hepatocellular Carcinoma here.

Breast Invasive Carcinoma (Keystone)

Invasive breast cancers indicate a spread into breast tissues and lymph nodes. Here are the latest discoveries pertaining to breast invasive carcinomas.