Clinical transplantation · 2013
The diagnostic value of contrast-enhanced ultrasonography in the assessment of perirenal hematomas in the early post-operative period after kidney transplantation.
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Grzelak P, Kurnatowska I, Nowicki M, Strzelczyk J, Durczyński A, Podgórski M, Stefańczyk L
Аннотация
BACKGROUND: Routine B-mode ultrasound examination (rB-US) is a current standard for the assessment of the transplanted kidney(KTx) in the early post-operative period. The alteration of perirenal hematoma (PH) echostructure over time limits their detectability and size assessment with rB-US. The aim of this study was to evaluate the diagnostic value of contrast-enhanced ultrasound (CE-US) in diagnosing PH of KTx in the early post-operative period.
METHOD: Routine B-US and CE-US of KTx, performed in 102 patients in the early post-operative period, were analyzed. CE-US was performed after intravenous administration of 2.4 mL of sulfur hexafluoride solution. The data were analyzed with respect to the occurrence and thickness of PH.
RESULT: The difference in echogenicity between PH and kidney parenchyma was modest in rB-US (mean of 5.7 dB). However, in CE-US, the difference in echogenicity was significantly increased (mean of 31.4 dB). Routine B-US did not allow PH to be recognized in 18 patients. The application of CE-US results in a twofold increase in PH detection when compared with rB-US (33.3% vs. 15.7%).
CONCLUSION: US-CE examination is a valuable method for detection and assessment of PH size. Compared with rB-US, this technique may substantially increase the detectability of hemorrhagic complications in the direct post-operative period.
METHOD: Routine B-US and CE-US of KTx, performed in 102 patients in the early post-operative period, were analyzed. CE-US was performed after intravenous administration of 2.4 mL of sulfur hexafluoride solution. The data were analyzed with respect to the occurrence and thickness of PH.
RESULT: The difference in echogenicity between PH and kidney parenchyma was modest in rB-US (mean of 5.7 dB). However, in CE-US, the difference in echogenicity was significantly increased (mean of 31.4 dB). Routine B-US did not allow PH to be recognized in 18 patients. The application of CE-US results in a twofold increase in PH detection when compared with rB-US (33.3% vs. 15.7%).
CONCLUSION: US-CE examination is a valuable method for detection and assessment of PH size. Compared with rB-US, this technique may substantially increase the detectability of hemorrhagic complications in the direct post-operative period.