alexa Impact of C-arm CT on hepatic arterial interventions for hepatic malignancies.
Medicine

Medicine

Journal of Medical Diagnostic Methods

Author(s): Wallace MJ, Murthy R, Kamat PP, Moore T, Rao SH,

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Abstract 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. This article was published in J Vasc Interv Radiol and referenced in Journal of Medical Diagnostic Methods

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