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Related Concept Videos

Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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,...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
Penis01:29

Penis

The penis serves a dual role in sexual reproduction and urination. It consists of three main regions: the glans penis, the body, and the root, each with distinct functions and unique anatomical features.
Anatomy of the Penis
The glans penis, or the head, is the terminal part of the penis and houses the external urethral orifice, the exit point for urine and semen. Covered by the prepuce, or foreskin, the glans is noted for its sensitivity and plays a key role in sexual pleasure. The body of the...
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...

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Related Experiment Video

Updated: May 17, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
07:41

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse

Published on: April 17, 2019

Penile imaging.

Anuradha Shenoy-Bhangle1, Rocio Perez-Johnston, Ajay Singh

  • 1Department of Radiology, Division of Abdominal Imaging, Massachusetts General Hospital, Boston, MA 02115, USA. ashenoy-bhangle@partners.org

Radiologic Clinics of North America
|November 6, 2012
PubMed
Summary
This summary is machine-generated.

Magnetic resonance (MR) imaging and ultrasound have distinct strengths in evaluating penile conditions. MR imaging excels in detecting Peyronie disease plaques and penile cancers, while ultrasound is better for calcified plaques and erectile dysfunction causes.

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Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
05:25

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

Related Experiment Videos

Last Updated: May 17, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
07:41

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse

Published on: April 17, 2019

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
05:25

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

Area of Science:

  • Urology
  • Radiology
  • Medical Imaging

Background:

  • Accurate diagnosis of penile conditions like Peyronie disease, erectile dysfunction, penile fractures, and malignancies is crucial for effective treatment.
  • Both magnetic resonance (MR) imaging and ultrasound are utilized for penile imaging, but their comparative efficacy for specific conditions requires clarification.

Purpose of the Study:

  • To compare the diagnostic capabilities of MR imaging and ultrasound in various penile pathologies.
  • To provide guidance on the optimal imaging modality for specific clinical scenarios involving the penis.

Main Methods:

  • Comparative analysis of MR imaging and ultrasound findings in patients with Peyronie disease, erectile dysfunction, penile fractures, and penile malignancies.
  • Evaluation of plaque detection, calcification visualization, vascular assessment, tunica albuginea disruption, and lymph node involvement.

Main Results:

  • MR imaging is superior to ultrasound for detecting impalpable plaques and assessing plaque dimensions in Peyronie disease.
  • Ultrasound is better for visualizing calcified plaques and evaluating vascular causes of erectile dysfunction using color Doppler.
  • MR imaging in the erect position is recommended for penile fractures to delineate tunica albuginea disruption for surgical planning.
  • MR imaging demonstrates better delineation of primary penile malignancies and lymph nodal involvement compared to ultrasound.

Conclusions:

  • MR imaging and ultrasound offer complementary roles in the diagnosis of penile diseases.
  • The choice of imaging modality should be tailored to the specific clinical suspicion, considering the strengths of each technique.
  • MR imaging is preferred for non-calcified plaques, malignancies, and fractures, while ultrasound is advantageous for calcified plaques and vascular assessments.