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Related Concept Videos

Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption.
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Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
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Related Experiment Video

Updated: Jul 9, 2026

Direct Drug Delivery to Kidney via the Renal Artery
11:18

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Published on: April 17, 2021

Percutaneous renal access: a simplified approach.

Enrique Mues1, Jorge Gutiérrez, Achim M Loske

  • 1Nuevo Hospital Civil, Universidad de Guadalajara, Guadalajara, Jalisco, México.

Journal of Endourology
|November 29, 2007
PubMed
Summary

This study introduces a simplified percutaneous kidney access technique, significantly reducing radiation exposure for patients and clinicians. The method is proven safe, reproducible, and easy to teach, enhancing procedural outcomes.

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Last Updated: Jul 9, 2026

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Area of Science:

  • Nephrology
  • Minimally Invasive Surgery
  • Medical Imaging

Background:

  • Percutaneous kidney access is crucial for various urological procedures.
  • Minimizing radiation exposure during percutaneous interventions is a significant clinical challenge.
  • Existing techniques may involve complex setups or higher radiation doses.

Purpose of the Study:

  • To present a simplified surgical technique for percutaneous kidney access.
  • To achieve low radiation exposure for patients and medical staff.
  • To establish a reproducible and easily teachable method.

Main Methods:

  • A novel percutaneous approach aligning C-arm and needle axes.
  • Utilizing a predetermined calix in the medial vertical plane.
  • Performing 28 percutaneous access tracts into different kidney calices.
  • Determining the 3-dimensional position of the inserted needle.

Main Results:

  • All 28 percutaneous access tracts were successfully created.
  • Statistical analysis confirmed the technique's reproducibility (low coefficient of variation).
  • The procedure was demonstrated to be easy to learn and teach.

Conclusions:

  • The described technique offers a safe and simplified method for percutaneous kidney access.
  • This approach requires significantly less radiation compared to other established methods.
  • The technique's reproducibility and ease of performance make it a valuable addition to urological practice.