Impact of C-arm CT on Hepatic Arterial Interventions for Hepatic Malignancies

Michael J. Wallace, Ravi Murthy, Paresh P. Kamat, Teri Moore, Sujaya H. Rao, Joe Edward Ensor, Jr., Sanjay Gupta, Kamran Ahrar, David C. Madoff, Stephen E. McRae, Marshall E. Hicks

Research output: Contribution to journalArticlepeer-review

99 Scopus citations


Purpose: To evaluate C-arm computed tomography (CT) and assess its potential impact on hepatic arterial interventions. Materials and Methods: Between May 2005 and March 2006, all hepatic arterial interventions for hepatic malignancies were retrospectively reviewed. C-arm CT acquisitions were performed as an adjunct to conventional digital subtraction angiography (DSA). The number of procedures with C-arm CT, the acquisitions per intervention, and the procedure time for all interventions were recorded. The added information provided by C-arm CT was scored as category 1 (no additional information); category 2 (added information without impact on procedure management); or category 3 (added information with impact on procedure management). Intervention types included infusions, radioembolization, embolization, and chemoembolization. A two-sided, two-sample t test was used to compare interventions with and without C-arm CT, and P values less than .05 were considered significant. Results: C-arm CT was used in 86 of 240 interventions (36%) in 135 patients. The mean number of acquisitions per study was 1.9 (range, 1-4). Thirty-five interventions (40.7%) were scored as category 2 and 16 interventions (18.6%) were scored as category 3. Chemoembolization was associated with the highest percentage of C-arm CT investigations classified as category 2 and 3 assessed per intervention. The mean procedure time was significantly longer (18 minutes) when C-arm CT was used (P < .001). Conclusions: C-arm CT provides additional imaging information beyond DSA during hepatic arterial interventions (approximately 60%), and this information impacted procedure management in 19% of cases. C-arm CT offers the greatest opportunity for additional information during chemoembolization procedures and is responsible for a significant but acceptable increase in procedure time for this type of hepatic intervention.

Original languageEnglish (US)
Pages (from-to)1500-1507
Number of pages8
JournalJournal of Vascular and Interventional Radiology
Issue number12
StatePublished - Dec 1 2007

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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