Work in progress

The application of temporal filtering techniques to hybrid subtraction in digital subtraction angiography

Stephen J Riederer, W. R. Brody, D. R. Enzmann, A. L. Hall, J. K. Maier

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Temporal filtering methods were applied to iodine signal-to-noise ratio (SNR) restoration in intravenous hybrid subtraction digital subtraction angiography (DSA). For equal detected exposure rates hybrid subtraction had approximately 35% of the SNR of temporal subtraction. When matched filtering was applied to a DSA run, the filtered result had approximately two times higher SNR than the peak contrast image in the run. Thus, when matched filtering techniques were applied to the hybrid image sequence, the resultant SNR increased to about 70% of that of temporal subtraction. With an additional factor-of-two increase in exposure rate for the hybrid run, SNR parity with temporal subtraction could be achieved. This compared with a factor-of-nine increase in exposure that would be required if no filtering were performed. Experimental hybrid matched filter results, generated with intravenous canine DSA studies, supported the predictions in SNR performance.

Original languageEnglish (US)
Pages (from-to)859-862
Number of pages4
JournalRadiology
Volume147
Issue number3
StatePublished - 1983
Externally publishedYes

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Digital Subtraction Angiography
Signal-To-Noise Ratio
Parity
Iodine
Canidae

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

Work in progress : The application of temporal filtering techniques to hybrid subtraction in digital subtraction angiography. / Riederer, Stephen J; Brody, W. R.; Enzmann, D. R.; Hall, A. L.; Maier, J. K.

In: Radiology, Vol. 147, No. 3, 1983, p. 859-862.

Research output: Contribution to journalArticle

Riederer, Stephen J ; Brody, W. R. ; Enzmann, D. R. ; Hall, A. L. ; Maier, J. K. / Work in progress : The application of temporal filtering techniques to hybrid subtraction in digital subtraction angiography. In: Radiology. 1983 ; Vol. 147, No. 3. pp. 859-862.
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