Related Experiment Video

Updated: Apr 12, 2026

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

20.6K

[Evaluation of testicular volume in 0- to 18-year-old boys by sonography]

M Kunde1, C Kunze2, A Surov2

  • 1Klinik und Poliklinik für Diagnostische Radiologie, Martin-Luther-Universität, Universitätsklinikum Halle (Saale), Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland. mathias.kunde@uk-halle.de.

Der Urologe. Ausg. A
|May 21, 2015
PubMed

Insights

This study establishes reference values for testicular volume in boys aged 0-18 years, considering age, height, and weight. These findings aid in diagnosing testicular disorders and monitoring development.

Area of Science:

  • Pediatric endocrinology
  • Andrology
  • Diagnostic imaging

Background:

  • Accurate testicular volume assessment is crucial for clinical practice.
  • Establishing normative data is essential for identifying testicular disorders.

Purpose of the Study:

  • To determine age-, height-, and weight-dependent reference values for testicular volume in boys aged 0-18 years.
  • To provide updated normative data for pediatric testicular evaluation.

Main Methods:

  • Prospective, cross-sectional study of 174 healthy boys aged 0-18 years.
  • High-resolution ultrasound (7.5-14 MHz) used for testicular examination.
  • Testicular volume calculated using the ellipsoid formula: V = (π/6) * length * width * height.

Main Results:

  • Testicular volume reference ranges were established for boys aged 0-18 years.
  • Left testicular volume was slightly smaller than right in younger boys (0-8 years).
  • By age 13, all subjects had testicular volumes >3 ml; adolescent volumes varied significantly.

Conclusions:

  • Compiled reference value tables for testicular volume, length, width, and height based on age, weight, and height.
  • These tables offer valuable tools for clinical assessment of pediatric testicular development.
Abstract

Keywords:
Adolescent, maleChildReference valuesTestesUltrasonography

More Related Videos

Combined Supine and Standing Imaging for Varicocele: An Improved Diagnostic Approach04:15

Combined Supine and Standing Imaging for Varicocele: An Improved Diagnostic Approach

Published on: November 22, 2024

1.0K
Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography03:19

Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography

Published on: June 21, 2024

2.9K

Related Concept Videos

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...
782
Testes: Gross Anatomy01:19

Testes: Gross Anatomy

The testes, also known as testicles, are the male gonads. They are housed within the scrotum, a sac-like structure located beneath the penis. The scrotum's primary role is to regulate the temperature of the testes, which is crucial for sperm production.
Each testis is surrounded by the tunica albuginea, a dense connective tissue layer that provides structural support and protection. This layer is covered by an outer serous membrane called the tunica vaginalis, which helps reduce friction...
8.9K
Ultrasonography01:17

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
8.4K
Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
8.3K
Testes: Histology01:27

Testes: Histology

A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
3.8K
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...
4.0K