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Related Concept Videos

Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

48
Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
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Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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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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Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
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Updated: Sep 19, 2025

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Developing a CT radiomics-based model for assessing split renal function using machine learning.

Yihua Zhan1, Junjiong Zheng1, Xutao Chen1

  • 1The Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.

Japanese Journal of Radiology
|June 3, 2025
PubMed
Summary
This summary is machine-generated.

Non-contrast CT radiomics accurately assesses split renal function. A developed radiomics model shows potential for clinical use in evaluating kidney function based on glomerular filtration rate.

Keywords:
Assessment modelMachine learningNon-contrast computed tomographyRadiomicsSplit renal function

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Area of Science:

  • Radiology
  • Medical Imaging
  • Renal Function Assessment

Background:

  • Split renal function is crucial for diagnosing and managing kidney diseases.
  • Accurate assessment of split renal function aids in treatment planning and prognosis.

Purpose of the Study:

  • To determine if non-contrast computed tomography (CT) radiomics can reflect split renal function.
  • To develop and validate a radiomics model for assessing split renal function.

Main Methods:

  • A retrospective study of 543 kidneys, divided into training (70%) and testing (30%) sets.
  • Renal dynamic imaging used as the reference standard for split renal function.
  • A random forest radiomics model was built using 16 important features selected by a tree model, categorizing kidneys by glomerular filtration rate (GFR).

Main Results:

  • The radiomics model demonstrated good discriminatory ability across different GFR categories in the testing set.
  • Area Under the Curve (AUC) values for GFR >45, 30-45, and <30 ml/min/1.73 m² were 0.859, 0.679, and 0.901, respectively.
  • Calibration curves showed good agreement, and decision curve analysis confirmed the model's clinical utility.

Conclusions:

  • Non-contrast CT radiomics effectively reflects split renal function information.
  • The developed radiomics model accurately assesses split renal function.
  • This approach holds significant potential for clinical application in renal function evaluation.