Cone-beam CT with flat-panel-detector digital angiography system: early experience in abdominal interventional procedures.
We developed a cone-beam computed tomography (CBCT) system equipped with a large flat-panel detector. Data obtained by 200 degree rotation imaging are reconstructed by means of CBCT to generate three-dimensional images. We report the use of CBCT angiography using CBCT in 10 patients with 8 liver malignancies and 2 hypersplenisms during abdominal interventional procedures. CBCT was very useful for interventional radiologists to confirm a perfusion area of the artery catheter wedged on CT by injection of contrast media through the catheter tip, although the image quality was slightly degraded, scoring as 2.60 on average by streak artifacts. CBCT is space-saving because it does not require a CT system with a gantry, and it is also time-saving because it does not require the transfer of patients.
Hirota
Shozo
S
Department of Radiology, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya City, Hyogo Prefecture, Japan, 653-8501. hirota-s@hyo-med.ac.jp
Nakao
Norio
N
Yamamoto
Satoshi
S
Kobayashi
Kaoru
K
Maeda
Hiroaki
H
Ishikura
Reiichi
R
Miura
Koui
K
Sakamoto
Kiyoshi
K
Ueda
Ken
K
Baba
Rika
R
D000368:Aged; D016477:Artifacts; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging / Q000628:therapy; D004621:Embolization, Therapeutic; D004867:Equipment Design; D005260:Female; D006801:Humans; D006971:Hypersplenism / Q000000981:diagnostic imaging / Q000628:therapy; D007091:Image Processing, Computer-Assisted; D007564:Japan; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D011857:Radiographic Image Interpretation, Computer-Assisted; D011860:Radiography, Abdominal / Q000295:instrumentation*; D013997:Time Factors; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*