PURPOSE: To verify the potential of ungated spiral phase-contrast (USPC), which has been shown to provide accurate and reproducible time-averaged measurements of pulsatile flow, for rapid measurement of renal artery blood flow (RABF) in vivo. MATERIALS AND METHODS: The RABF rates of 11 normal human subjects and one patient with renal failure were measured with USPC within six seconds. RESULTS: Rapid USPC scans produced reproducible RABF measurements (SD < or = 9%) that agreed with the normal RABF rates known from the literature. The RABF rates of the patient with renal failure were substantially less (<50-65%) than the normal RABF rates. CONCLUSION: The results demonstrate that it is now possible to obtain rapid and consistent RABF measurements within six seconds with USPC.
PURPOSE: To verify the potential of ungated spiral phase-contrast (USPC), which has been shown to provide accurate and reproducible time-averaged measurements of pulsatile flow, for rapid measurement of renal artery blood flow (RABF) in vivo. MATERIALS AND METHODS: The RABF rates of 11 normal human subjects and one patient with renal failure were measured with USPC within six seconds. RESULTS: Rapid USPC scans produced reproducible RABF measurements (SD < or = 9%) that agreed with the normal RABF rates known from the literature. The RABF rates of the patient with renal failure were substantially less (<50-65%) than the normal RABF rates. CONCLUSION: The results demonstrate that it is now possible to obtain rapid and consistent RABF measurements within six seconds with USPC.
Authors: Eleanor F Cox; Charlotte E Buchanan; Christopher R Bradley; Benjamin Prestwich; Huda Mahmoud; Maarten Taal; Nicholas M Selby; Susan T Francis Journal: Front Physiol Date: 2017-09-14 Impact factor: 4.566
Authors: Jennifer Keegan; Hitesh C Patel; Robin M Simpson; Raad H Mohiaddin; David N Firmin Journal: J Cardiovasc Magn Reson Date: 2015-02-04 Impact factor: 5.364
Authors: Giulia Villa; Steffen Ringgaard; Ingo Hermann; Rebecca Noble; Paolo Brambilla; Dinah S Khatir; Frank G Zöllner; Susan T Francis; Nicholas M Selby; Andrea Remuzzi; Anna Caroli Journal: MAGMA Date: 2019-08-17 Impact factor: 2.310