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Measurement of transplanted pancreatic volume using computed tomography: reliability by intra- and inter-observer variability
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Transplantation Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Radiology.
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2012 (English)In: Acta Radiologica, ISSN 0284-1851, E-ISSN 1600-0455, Vol. 53, no 9, 966-972 p.Article in journal (Refereed) Published
Abstract [en]

Background

Unlike other solid organ transplants, pancreas allografts can undergo a substantial decrease in baseline volume after transplantation. This phenomenon has not been well characterized, as there are insufficient data on reliable and reproducible volume assessments. We hypothesized that characterization of pancreatic volume by means of computed tomography (CT) could be a useful method for clinical follow-up in pancreas transplant patients.

Purpose

To evaluate the feasibility and reliability of pancreatic volume assessment using CT scan in transplanted patients.

Material and Methods

CT examinations were performed on 21 consecutive patients undergoing pancreas transplantation. Volume measurements were carried out by two observers tracing the pancreatic contours in all slices. The observers performed the measurements twice for each patient. Differences in volume measurement were used to evaluate intra- and inter-observer variability.

Results

The intra-observer variability for the pancreatic volume measurements of Observers 1 and 2 was found to be in almost perfect agreement, with an intraclass correlation coefficient (ICC) of 0.90 (0.77-0.96) and 0.99 (0.98-1.0), respectively. Regarding inter-observer validity, the ICCs for the first and second measurements were 0.90 (range, 0.77-0.96) and 0.95 (range, 0.85-0.98), respectively.

Conclusion

CT volumetry is a reliable and reproducible method for measurement of transplanted pancreatic volume.

Place, publisher, year, edition, pages
2012. Vol. 53, no 9, 966-972 p.
National Category
Radiology, Nuclear Medicine and Medical Imaging
Identifiers
URN: urn:nbn:se:uu:diva-182427DOI: 10.1258/ar.2012.120317ISI: 000311596800003PubMedID: 23002143OAI: oai:DiVA.org:uu-182427DiVA: diva2:559732
Available from: 2012-10-10 Created: 2012-10-10 Last updated: 2017-12-07Bibliographically approved

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Magnusson, AndersBiglarnia, Ali-Reza

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