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Validation of the diminished nephrogram as an indicator of renal obstruction in patients with acute ureteral stones

Kiriakedis, Satomi
2026
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Abstract

We confirmed that a 15 HU difference in medullary renal attenuation on contrast-enhanced CT is a highly specific indicator of renal obstruction, with larger attenuation differences associated with greater renal injury. These findings support the diminished nephrogram as an objective imaging marker of obstructive uropathy.

Details

Title
Validation of the diminished nephrogram as an indicator of renal obstruction in patients with acute ureteral stones
Creator
Kiriakedis, Satomi : Oregon Health and Science University : (0009-0002-8208-9821)
Contributor
Magill, Resa : Co-Investigator : Oregon Health and Science University
O'Connor, Walton : Co-Investigator
Schmidt, Jackson : Co-Investigator : Oregon Health and Science University
Metzler, Ian : Co-Investigator : Oregon Health and Science University
Chakiryan, Nicholas : Co-Investigator : Oregon Health and Science University
Strother, Marshall : Mentor : Oregon Health and Science University
Publisher
Oregon Health and Science University
Date
2026-07-01
Subjects
Keywords
DOI
https://doi.org/10.6083/bpxhc44977
Language
English
Content Type
Capstone
Degree Type
M.D.
Academic Program
Medicine (Undergraduate Medical Education)
School
School of Medicine
Copyright Status
Usage Statement
Record ID
44977
Record Created
2026-03-20
Record Appears in
OHSU Works > Student Work > Academic Programs > School of Medicine Programs > Medicine (Undergraduate Medical Education)
OHSU Works > Student Work > Degrees > Medical Doctor (M.D.)
Organizations > Schools > School of Medicine
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