FROM DONOR TO RECIPIENT: Doppler US, power US and scintigraphy of kidney perfusion before and after transplantation
AbstractPurpose: To follow kidneys from the donor to the recipient by assessing whether perfusion changes occur by using duplex Doppler US, power Doppler US and scintigraphy.Material and Methods: The prospective study included 12 donors and their corresponding 12 recipients. For each donor, both don...
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Veröffentlicht in: | Acta radiologica (1987) 2000-05, Vol.41 (3), p.285-287 |
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Zusammenfassung: | AbstractPurpose: To follow kidneys from the donor to the recipient by assessing whether perfusion changes occur by using duplex Doppler US, power Doppler US and scintigraphy.Material and Methods: The prospective study included 12 donors and their corresponding 12 recipients. For each donor, both donor kidneys were evaluated by duplex Doppler US, power Doppler US and scintigraphy 1 day before surgery. The same procedure was carried out on the renal allografts at days 1, 3, 5 and months 1 and 3 post-transplantation. Power Doppler findings were classified according to a grading system of 1 to 4. Resistive indices (RIs) were determined based on interlobar and segmental arterial flow. Peak systolic velocity and RIs of the main renal artery were also measured. A perfusion parameter named the peak-to-plateau ratio was calculated. Statistical analysis was performed using the paired-samples t-test.Results: Intrarenal RI elevation and decreased renal artery peak systolic velocity was observed in normally functioning recipient kidneys.Conclusion: Duplex Doppler sonography demonstrated that transplanted kidneys had an increase in intrarenal vascular resistance at 1 month and a decrease in renal artery peak systolic velocity at 3 months post-transplantation. Scintigraphy and power Doppler US did not reveal any statistically significant perfusion change in normally functioning kidneys from donor to recipient. |
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ISSN: | 0284-1851 1600-0455 |
DOI: | 10.1080/028418500127345262 |