Faculty Collaboration Database

I.v. and intraarterial hybrid digital subtraction angiography: clinical evaluation. AJR Am J Roentgenol 1986 Sep;147(3):613-20

Date

09/01/1986

Pubmed ID

3526848

DOI

10.2214/ajr.147.3.613

Scopus ID

2-s2.0-0022777197 (requires institutional sign-in at Scopus site)   1 Citation

Abstract

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 EO

Author

William Dennis Foley MBBS Emeritus Professor in the Radiology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adolescent
Adult
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