I.v. and intraarterial hybrid digital subtraction angiography: clinical evaluation. AJR Am J Roentgenol 1986 Sep;147(3):613-20
Date
09/01/1986Pubmed ID
3526848DOI
10.2214/ajr.147.3.613Scopus ID
2-s2.0-0022777197 (requires institutional sign-in at Scopus site) 1 CitationAbstract
Temporal/energy (hybrid) subtraction is a technique for removing soft-tissue motion artifact from digital subtraction angiograms. The diagnostic utility of hybrid subtraction for i.v. and intraarterial angiography was assessed in the first 9 months of operation of a dedicated production system. In i.v. carotid arteriography (N = 127), hybrid subtraction (H) provided a double-profile projection of the carotid bifurcation in an additional 14% of studies, compared with temporal subtraction (T) alone (H79:T48, p less than 0.001). However, a change in estimated percent stenosis or additional diagnostic information occurred in only 2% of studies. In i.v. abdominal arteriography (N = 23), hybrid subtraction, compared with temporal subtraction, provided a diagnostic examination in an additional 14% of studies (H20:T17); however, this difference is not statistically significant. An additional three i.v. abdominal angiograms were nondiagnostic. In intraarterial abdominal (N = 98) and pelvic (N = 60) angiography, hybrid subtraction provided a diagnostic examination in an additional 5% of studies (abdomen H94:T90, pelvis H58:T56); this difference was not statistically significant. An additional 5% of all intraarterial abdominal and pelvic digital subtraction angiographic studies were considered nondiagnostic. Hybrid subtraction provides a double-profile view of the carotid bifurcation in a significant number of patients. However, apart from some potential for improved i.v. abdominal arteriography, hybrid subtraction does not result in significant improvement in comparison to conventional temporal-subtraction techniques.
Author List
Foley WD, Beres J, Smith DF, Bell RM, Milde MW, Lipchik EOMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Angiography
Aortography
Carotid Arteries
Child
Contrast Media
Evaluation Studies as Topic
Female
Humans
Iliac Artery
Injections, Intra-Arterial
Injections, Intravenous
Male
Middle Aged
Renal Artery
Subtraction Technique
Vertebral Artery
