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Low-dose low-osmolar urography with iohexol.

Rakhee Gupta1, Raj Kumar Airon

  • 1Department of Radiodiagnosis, Pt. BD Sharma Postgraduate Institute of Medical Sciences, Rohtak, India. tinysam@glide.net.in

Urologia Internationalis
|August 2, 2003
PubMed
Summary

Low-dose iohexol (90 mg iodine/kg) is safe and effective for intravenous urography. This study found it provided satisfactory diagnostic information in 94% of patients with minimal adverse reactions.

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Area of Science:

  • Radiology
  • Diagnostic Imaging
  • Urology

Background:

  • Intravenous urography (IVU) is a key diagnostic tool for urinary system evaluation.
  • Optimizing contrast agent dosage is crucial for balancing diagnostic efficacy and patient safety.

Purpose of the Study:

  • To evaluate the diagnostic performance of a low dose of iohexol for IVU.
  • To assess the safety profile of low-dose iohexol in patients undergoing IVU.

Main Methods:

  • Fifty patients with urinary complaints underwent IVU using low-dose iohexol (90 mg iodine/kg).
  • Patients with renal insufficiency (elevated blood urea and serum creatinine) were excluded.
  • Image quality and diagnostic information were assessed, and adverse reactions were monitored.

Main Results:

  • A satisfactory diagnosis was achieved in 94% of the patients.
  • Only one patient experienced a minor adverse reaction (heat sensation), which required no treatment.
  • The low dose of iohexol demonstrated good diagnostic yield for renal parenchyma, calyces, and the collecting system.

Conclusions:

  • Low-dose iohexol (90 mg iodine/kg) is a safe and diagnostically effective agent for routine IVU.
  • This dosage offers a favorable risk-benefit profile for evaluating various urinary complaints.

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