Optimal scintigraphic evaluation of a hydronephrotic horseshoe kidney

Mark L. Lessne, Nirav P. Shah, James F. Stinchon, Mary E. Cross, M. Elizabeth Oates

Research output: Contribution to journalArticlepeer-review

Abstract

A 25-y-old man with horseshoe kidney was referred for diuretic-augmented renal scintigraphy. Single-detector dynamic posterior imaging was performed and revealed asymmetric retention of radiotracer in the left collecting system. Renal scintigraphy was repeated with a modified protocol. Dynamic imaging was performed this time using dual-detector acquisition of both anterior and posterior data. Thereafter, pregravity and subsequently postgravity static images were obtained in both anterior and posterior projections. This second study showed near-complete emptying of the left collecting system. This case illustrates the utility of using simultaneous anterior and posterior imaging and geometric mean calculations for functional analysis and also highlights the value of physiologic maneuvers to augment the traditional diuretic challenge.

Original languageEnglish (US)
Pages (from-to)255-258
Number of pages4
JournalJournal of nuclear medicine technology
Volume35
Issue number4
DOIs
StatePublished - Dec 2007

Keywords

  • Diuretic renal scintigraphy
  • Equivocal urinary tract obstruction
  • Gravity-assisted urinary drainage
  • Horseshoe kidney

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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