Efficacy of automated tumor‐feeder detection software using cone‐beam computed tomography technology in transarterial embolization through extrahepatic collateral vessels for malignant hepatic tumors

Abstract

AFD has a sufficient ability to identify extrahepatic tumor-feeders and may improve the safety and local effects of TACE/TAE of extrahepatic collaterals.

Efficacy of Automated Tumor-Feeder Detection Software Using Cone-Beam Computed Tomography Technology in Transarterial Targeted Therapy

“…In particular, the AFD software was better than DSA in terms of highlevel detectability of tumor feeders arising from the cystic, left gastric, and right colic arteries (Fig. 5) [4]. The AFD software can increase the effectiveness and safety of TACE/ TAE through such extrahepatic collaterals.…”

“…In TACE for HCC, the virtual target lesion should include a safety margin for treatment around the tumor (approximately 5 mm wide for tumors < 25 mm and 10 mm wide for tumors !25 mm). If the tumors are supplied by extrahepatic collaterals such as the cystic, gastric, or colonic artery, the safety margin should not be included to avoid nontarget embolization [4]. The target lesion is automatically superimposed on the 3-D arteriogram from CBCTA images by using a volume-rendering technique.…”

“…A suspected feeding branch can also be manually highlighted by clicking it on CBCTA images. The total time required for the analysis of tumor feeders after the acquisition of CBCTA images is less than approximately 2 minutes [1,3,4].…”

“…The three-dimensional (3-D) imaging data of CBCT can also be used not only for lesion detection but also for 3-D vessel tracking. The automated tumor-feeder detection (AFD) software is a new tool and is now being used in transarterial targeted therapies [3][4][5][6][7][8], mainly in TACE for hepatocellular carcinoma (HCC).…”

Assessment of automated cone-beam CT vessel identification software during transarterial hepatic embolisation: radiation dose, contrast medium volume, processing time, and operator perspectives compared to digital subtraction angiography

“…The use of dedicated software has been shown to improve the detection of vessels supplying tumours when compared to conventional DSA or manual CBCT two-dimensional (2D) multiplanar reconstructions (10, 12, 13); however, previous studies have not fully examined the potential impact of A-CBCT vessel segmentation in conjunction with display software from a variety of intraprocedural and operator perspectives.…”