Evaluation of vascular supply with cone-beam computed tomography during intraarterial chemotherapy for a skull base tumor

Abstract

A cone-beam lowers the X-ray exposure level and the contrast material dose used compared to those for the conventional angiography-computed tomography (angio-CT) technique. Herein we present a patient with a metastatic skull base bone tumor in which the subtraction image of cone-beam CT with a flat panel detector was useful for evaluating the vascular supply during superselective intraarterial chemotherapy. Although the image quality of cone-beam CT is poorer than that of conventional angio-CT, the cone-beam CT system is sufficient for clinical use.

Evaluation of right adrenal vein cannulation by computed tomography angiography in 140 consecutive patients undergoing adrenal venous sampling

“…CT during angiography (angio-CT) is a system that combines traditional angiography techniques with CT imaging. Results of angio-CT in tumor treatment are reported (12,13), and in our institution, we have also been using angio-CT for AVS, in particular to confirm correct cannulation of the right adrenal vein.…”

Cone-beam computed tomography arthrography: an innovative modality for the evaluation of wrist ligament and cartilage injuries

“…The use of high-resolution flat panel detectors now allows spatial resolution up to 0.1 × 0.1 × 0.1 mm with precise multiplanar reconstructions. CBCT permits radiation dose reduction as compared to conventional tomographic imaging, with doses reported to be 6 to 10 times lower than MDCT depending on the different applications [31,32]. Furthermore, CBCT units are far more affordable and require less dedicated space than MDCT ones, and are particularly suitable for outpatient imaging [33].…”

Intravenous contrast-enhanced cone beam computed tomography (IVCBCT) of intrahepatic tumors and vessels

“…As such, should IV-CBCT be available, this could prove an alternate option for patients undergoing short-course SABR. Intravenous-CBCT has proven useful in several non-RT applications such as neurovascular stent visualization, 22 the detection of HCC during arterial portography, 23 abdominal interventional procedures such as angiography, 24 and intra-arterial cranial chemotherapy 25 . In attempts to optimize tumor/vasculature visualization on IV-CBCT, the procedure was modified over the course of the study; thus, it is not surprising that there was variable visualization of liver tumors and vasculature because the timing of contrast administration and scan acquisition is critical for target visualization on a helical contrast-enhanced CT 6 .…”