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Fig. 3 | BMC Medical Imaging

Fig. 3

From: A pilot study on adjunctive use of parametric colour-coded digital subtraction angiography in endovascular interventions of haemodialysis access

Fig. 3

Quantification of contrast wash out time using time attenuation curve (TAC). (a) Time vs. contrast intensity curve of the AVF shown in Fig. 6. Pre-PTA TAC showed no contrast washout during the entire DSA captured, indicating slow flow. Post-PTA TAC exhibited contrast wash out over time and the time taken for 50% contrast wash out was 0.9 s. (b) Time vs. contrast intensity curve of an AVG treatment showing contrast wash out over time in both pre- and post-PTA TAC. The time taken for 50% contrast wash improved from 0.93 to 0.44 s

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BMC Medical Imaging

ISSN: 1471-2342

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