Bronchial arterial angio-CT: evaluation of intradural and oesophageal enhancement before bronchial arterial infusion.
Ultrafast CT combined with bronchial angiography (BA angio-CT) demonstrated a supply from the bronchial arteries to the oesophagus and spinal cord which is not identified on conventional bronchial arteriography using a digital subtraction technique. 20 patients with bronchial carcinoma and one with lung metastasis were examined using BA angio-CT, before bronchial artery infusion. 20 ml of non-ionic iodinated contrast medium (300 mgI ml-1) was injected into the bronchial artery, and ultrafast CT of the whole mediastinum was commenced when 10 ml had been injected. The 6 mm single slice mode was used and 40 images were obtained. Intradural and oesophageal enhancement was evaluated on BA angio-CT, and compared with the findings on digital subtraction angiography (DSA) of the bronchial arteries. BA angio-CT clearly showed intradural enhancement in eight patients. Marked spinal cord enhancement was demonstrated in three, and a coaxial catheter technique was used to avoid infusing the intercostal branch of the intercostobronchial trunk. Oesophageal enhancement was demonstrated in 18 patients on BA angio-CT. In contrast, no enhancement of these structures was seen on bronchial arterial DSA. In conclusion, BA angio-CT enabled precise evaluation of intradural and oesophageal enhancement.
Moteki
T
T
Department of Diagnostic Radiology, Gunma University Hospital, Japan.
Ohya
N
N
Katsuya
T
T
D000328:Adult; D000368:Aged; D015901:Angiography, Digital Subtraction; D000970:Antineoplastic Agents / Q000493:pharmacokinetics; D001981:Bronchial Arteries / Q000000981:diagnostic imaging*; D003287:Contrast Media; D004388:Dura Mater / Q000098:blood supply*; D004947:Esophagus / Q000098:blood supply*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007261:Infusions, Intra-Arterial; D008175:Lung Neoplasms / Q000098:blood supply* / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D012039:Regional Blood Flow; D014057:Tomography, X-Ray Computed
D000970:Antineoplastic Agents; D003287:Contrast Media