Improved detection of pancreatic islets in vivo using double contrast.

Abstract:

:The transplantation of pancreatic islets containing β-cells, which produce insulin, is an alternative approach to the treatment of type 1 diabetes mellitus. The non-invasive visualization of transplanted islets can be performed using MRI; however, this requires labeling of the islets with a suitable contrast agent prior to transplantation. The detection of islets labeled by iron oxide-based contrast agents and transplanted into the liver tissue can be significantly improved using the intravenous administration of a suitable gadolinium contrast agent prior to MRI. The applied contrast agent not only improves the contrast-to-noise ratio, but also eliminates artifacts that may lead to an overestimation of the number of hypointense spots and their area; thus it improves the accuracy of automated and semi-automated procedures used for transplanted islet segmentation and quantification.

authors

Herynek V,Berková Z,Dovolilová E,Jirák D,Kříž J,Girman P,Saudek F,Hájek M

doi

10.1002/cmmi.432

subject

Has Abstract

pub_date

2011-07-01 00:00:00

pages

308-13

issue

4

eissn

1555-4309

issn

1555-4317

journal_volume

6

pub_type

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