ORIGINAL ARTICLES   

International Angiology 1999 June;18(2):113-21

Copyright © 2000 EDIZIONI MINERVA MEDICA

lingua: Inglese

Three-dimensional CT angiographic assessment of vascular diseases using various postprocessing techniques: the voxel transmission and cruising eye view methods and their respective merits

Hayashi H., Kobayashi H., Takagi R., Kawamata H., Ichikawa T., Kumazaki T.

From the Department of Radiology, Nippon Medical School, Tokyo, Japan

Back­ground. To ­assess the clin­i­cal use­ful­ness of three-dimen­sion­al CT angiogra­phy (3D-CTA) with newly-devel­oped three-dimen­sion­al recon­struc­tion tech­niques; voxel trans­mis­sion (VT) and cruis­ing eye view (CEV) meth­ods, for per­form­ing min­i­mal­ly inva­sive diag­nos­tic imag­ing of vas­cu­lar dis­eas­es.
Meth­ods. ­Design: ret­ro­spec­tive com­par­a­tive study. Set­ting: Uni­ver­sity Hos­pi­tal, Japan. ­Patients: fifty-five ­patients with vas­cu­lar ­lesions con­firmed by cath­e­ter angio­gra­phy (20 ­patients with aor­tic aneu­rysms, 10 ­patients with aor­tic dis-
sec­tion, and 25 ­patients with periph­er­al arte­ri­al occ­lu­sive dis­ease). Main out­come meas­ures: min­i­mal­ly inva­sive, three-dimen­sion­al diag­no­sis of vas­cu­lar dis­eas­es.
­Results. Angio­gram-like imag­es with a diag­nos­tic qual­ity sim­i­lar to that of cath­e­ter angio­gra­phy were ­obtained by the three-dimen­sion­al CT angio­gra­phy/voxel trans­mis­sion (3D-CTA/VT) meth­od. This meth­od is use­ful for treat­ment plan­ning and also val­u­able for assess­ing the effec­tive­ness of treat­ment. Three-dimen­sion­al endo­scop­ic imag­es of the ves­sel inter­i­or were ­obtained by the three-dimen­sion­al CT angio­gra­phy cruis­ing eye meth­od (3D-CTA/CEV). This also yield­ed pre­cise infor­ma­tion about the rela­tion­ship ­between the vas­cu­lar ­lesions and the aor­tic ori­fic­es.
Con­clu­sions. Three-dimen­sion­al CTA/VT and three-dimen­sion­al-CTA/CEV ­enable vis­u­al­isa­tion of vas­cu­lar ­lesions from an infi­nite num­ber of view­ing ­angles, and are use­ful as min­i­mal­ly inva­sive diag­nos­tic tech­niques for imag­ing the vas­cu­la­ture.