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Related Experiment Videos

MR urography: technique and application

A Rothpearl1, D Frager, A Subramanian

  • 1Department of Radiology, St Lukes/Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, NY 10025.

Radiology
|January 1, 1995
PubMed
Summary
This summary is machine-generated.

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Magnetic resonance urography offers a radiation-free alternative for visualizing the kidneys and urinary tract. This technique effectively depicts urinary tract obstruction and anomalies, providing detailed images without contrast agents.

Area of Science:

  • Radiology
  • Medical Imaging
  • Urology

Background:

  • Conventional urinary tract imaging often involves ionizing radiation and iodinated contrast agents.
  • There is a need for non-invasive imaging techniques that provide detailed anatomical and functional information.

Purpose of the Study:

  • To evaluate a modified magnetic resonance (MR) technique for depicting the kidneys and urinary tract.
  • To assess the utility of MR urography in patients with and without urinary tract obstruction.

Main Methods:

  • Modified, heavily T2-weighted fast spin-echo pulse sequence (MR urography) was used in 34 patients.
  • MR urography with furosemide and ureteral compression was performed in six healthy volunteers.

Main Results:

Related Experiment Videos

  • MR urography provided high-resolution images of the kidneys and urinary tract, successfully depicting obstruction and anomalies.
  • Intraluminal neoplasia was well visualized in both obstructed and nonobstructed systems.
  • Furosemide-enhanced MR urography demonstrated fine anatomic and functional detail.

Conclusions:

  • MR urography serves as a viable alternative to conventional urinary tract imaging.
  • This technique avoids ionizing radiation and iodinated contrast material.
  • Combined with furosemide and ureteral compression, MR urography offers detailed functional and anatomical insights.