Correlation of the arterial resistive index in pancreas transplants of patients with transplant rejection

O. A. Aideyan, M. C. Foshager, E. Benedetti, Christoph Troppmann, R. W G Gruessner

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Abstract

OBJECTIVE. This study was undertaken to determine whether arterial resistive indexes (RIs) in pancreas transplants correlate with biopsy-proven transplant rejection. MATERIALS AND METHODS. We retrospectively reviewed arterial RIs in pancreas transplants for all patients who underwent Doppler sonography within 1 week before transcystoscopic or percutaneous biopsy of pancreas transplants. RIs were correlated with type and degree of rejection in the 20 transplants for which biopsies provided sufficient tissue for diagnosis. Three patients were subsequently eliminated from the study because of significant intervening therapy between sonography and biopsy. RESULTS. The nine transplants with no evidence of rejection had a mean arterial RI of 0.64 (range, 0.49-0.80). The six transplants with acute mild or moderate rejection had a mean RI of 0.67 (range, 0.56-0.73). The two transplants with acute severe rejection had a mean RI of 0.85 (range, 0.80-0.90). We found no statistically significant difference between arterial RIs in pancreas transplants of patients with acute mild or acute moderate rejection and those with no evidence of rejection. CONCLUSION. Arterial RIs of pancreas transplants do not differentiate between acute mild or acute moderate rejection and absence of rejection. The higher mean value of arterial RIs in pancreas transplants with acute severe rejection suggests that elevated arterial RIs are sensitive, but not specific, for revealing acute severe rejection of pancreas transplants. However, our study data are limited, and a larger sample size is necessary to draw statistically significant conclusions.

Original languageEnglish (US)
Pages (from-to)1445-1447
Number of pages3
JournalAmerican Journal of Roentgenology
Volume168
Issue number6
StatePublished - Jun 1997
Externally publishedYes

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Graft Rejection
Pancreas
Transplants
Biopsy
Doppler Ultrasonography
Sample Size
Ultrasonography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Correlation of the arterial resistive index in pancreas transplants of patients with transplant rejection. / Aideyan, O. A.; Foshager, M. C.; Benedetti, E.; Troppmann, Christoph; Gruessner, R. W G.

In: American Journal of Roentgenology, Vol. 168, No. 6, 06.1997, p. 1445-1447.

Research output: Contribution to journalArticle

Aideyan, O. A. ; Foshager, M. C. ; Benedetti, E. ; Troppmann, Christoph ; Gruessner, R. W G. / Correlation of the arterial resistive index in pancreas transplants of patients with transplant rejection. In: American Journal of Roentgenology. 1997 ; Vol. 168, No. 6. pp. 1445-1447.
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abstract = "OBJECTIVE. This study was undertaken to determine whether arterial resistive indexes (RIs) in pancreas transplants correlate with biopsy-proven transplant rejection. MATERIALS AND METHODS. We retrospectively reviewed arterial RIs in pancreas transplants for all patients who underwent Doppler sonography within 1 week before transcystoscopic or percutaneous biopsy of pancreas transplants. RIs were correlated with type and degree of rejection in the 20 transplants for which biopsies provided sufficient tissue for diagnosis. Three patients were subsequently eliminated from the study because of significant intervening therapy between sonography and biopsy. RESULTS. The nine transplants with no evidence of rejection had a mean arterial RI of 0.64 (range, 0.49-0.80). The six transplants with acute mild or moderate rejection had a mean RI of 0.67 (range, 0.56-0.73). The two transplants with acute severe rejection had a mean RI of 0.85 (range, 0.80-0.90). We found no statistically significant difference between arterial RIs in pancreas transplants of patients with acute mild or acute moderate rejection and those with no evidence of rejection. CONCLUSION. Arterial RIs of pancreas transplants do not differentiate between acute mild or acute moderate rejection and absence of rejection. The higher mean value of arterial RIs in pancreas transplants with acute severe rejection suggests that elevated arterial RIs are sensitive, but not specific, for revealing acute severe rejection of pancreas transplants. However, our study data are limited, and a larger sample size is necessary to draw statistically significant conclusions.",
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AU - Benedetti, E.

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AU - Gruessner, R. W G

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N2 - OBJECTIVE. This study was undertaken to determine whether arterial resistive indexes (RIs) in pancreas transplants correlate with biopsy-proven transplant rejection. MATERIALS AND METHODS. We retrospectively reviewed arterial RIs in pancreas transplants for all patients who underwent Doppler sonography within 1 week before transcystoscopic or percutaneous biopsy of pancreas transplants. RIs were correlated with type and degree of rejection in the 20 transplants for which biopsies provided sufficient tissue for diagnosis. Three patients were subsequently eliminated from the study because of significant intervening therapy between sonography and biopsy. RESULTS. The nine transplants with no evidence of rejection had a mean arterial RI of 0.64 (range, 0.49-0.80). The six transplants with acute mild or moderate rejection had a mean RI of 0.67 (range, 0.56-0.73). The two transplants with acute severe rejection had a mean RI of 0.85 (range, 0.80-0.90). We found no statistically significant difference between arterial RIs in pancreas transplants of patients with acute mild or acute moderate rejection and those with no evidence of rejection. CONCLUSION. Arterial RIs of pancreas transplants do not differentiate between acute mild or acute moderate rejection and absence of rejection. The higher mean value of arterial RIs in pancreas transplants with acute severe rejection suggests that elevated arterial RIs are sensitive, but not specific, for revealing acute severe rejection of pancreas transplants. However, our study data are limited, and a larger sample size is necessary to draw statistically significant conclusions.

AB - OBJECTIVE. This study was undertaken to determine whether arterial resistive indexes (RIs) in pancreas transplants correlate with biopsy-proven transplant rejection. MATERIALS AND METHODS. We retrospectively reviewed arterial RIs in pancreas transplants for all patients who underwent Doppler sonography within 1 week before transcystoscopic or percutaneous biopsy of pancreas transplants. RIs were correlated with type and degree of rejection in the 20 transplants for which biopsies provided sufficient tissue for diagnosis. Three patients were subsequently eliminated from the study because of significant intervening therapy between sonography and biopsy. RESULTS. The nine transplants with no evidence of rejection had a mean arterial RI of 0.64 (range, 0.49-0.80). The six transplants with acute mild or moderate rejection had a mean RI of 0.67 (range, 0.56-0.73). The two transplants with acute severe rejection had a mean RI of 0.85 (range, 0.80-0.90). We found no statistically significant difference between arterial RIs in pancreas transplants of patients with acute mild or acute moderate rejection and those with no evidence of rejection. CONCLUSION. Arterial RIs of pancreas transplants do not differentiate between acute mild or acute moderate rejection and absence of rejection. The higher mean value of arterial RIs in pancreas transplants with acute severe rejection suggests that elevated arterial RIs are sensitive, but not specific, for revealing acute severe rejection of pancreas transplants. However, our study data are limited, and a larger sample size is necessary to draw statistically significant conclusions.

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