Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Bending and Torsional Moments

Bending and Torsional Moments

Bending and torsional moments are two fundamental concepts in structural engineering. They play an important role in understanding the behavior of materials and structures under different loading conditions.
The reaction developed in a structural element when subjected to an external force causes the element to bend. When a structural element bends upwards, it creates compressive normal forces on the top and tensile normal forces on the bottom, resulting in a couple that determines the bending...

Torsion in Vector Calculus

Torsion in Vector Calculus

A toy train ascending a winding track that curves and tilts offers an intuitive view of torsion, a key geometric concept in the study of space curves. While curvature measures how sharply a path bends, torsion captures how the path twists out of the plane of bending. This twisting behavior is crucial in understanding three-dimensional motion and is precisely described using the Frenet–Serret framework.At each point along a space curve, the Frenet–Serret frame consists of three orthogonal unit...

Torsion of Noncircular Members

Torsion of Noncircular Members

Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...

Torsional Pendulum

Torsional Pendulum

A torsional pendulum involves the oscillation of a rigid body in which the restoring force is provided by the torsion in the string from which the rigid body is suspended. Ideally, the string should be massless; practically, its mass is much smaller than the rigid body's mass and is neglected.
As long as the rigid body's angular displacement is small, its oscillation can be modeled as a linear angular oscillation. The amplitude of the oscillation is an angle. The role of mass is played by the...

Torque Free Motion

Torque Free Motion

The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...

General Case of Eccentric Axial Loading

General Case of Eccentric Axial Loading

Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical bending,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

A Case of Ovarian Seromucinous Borderline Tumor With a Predominant Serous Component Suggesting Serous Borderline Tumor With Mucinous Differentiation.

International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists·2026

Same author

Progressive Hemiparesis Due to Cervical Ossification of the Ligamentum Flavum Resembling Stroke: A Case Report.

Asian journal of neurosurgery·2025

Same author

Second opinions and pathological review impact the clinical management of patients with muscle-invasive bladder cancer.

World journal of urology·2025

Same author

Case Report: Hypothalamic demyelinating lesion preceding lymphoma arising outside the central nervous system.

Frontiers in oncology·2025

Same author

Safety and pathological impact of resection after high-dose PBT for locally advanced pancreatic cancer.

World journal of surgical oncology·2025

Same author

The gradual expansion of multiple intramedullary metastatic renal cell carcinoma in a patient with von Hippel-Lindau disease with multiple intramedullary hemangioblastomas: illustrative case.

Journal of neurosurgery. Case lessons·2025

Search research articles

Related Experiment Video

Updated: Jul 20, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Published on: August 22, 2025

Omental torsion.

Noriaki Sakamoto¹, Tatsurou Ohishi, Shigeru Kurisu

¹Department of Radiology, Hyogo Prefectural Awaji Hospital, 1-6-6 Shimokamo, Sumoto, Hyogo 656-0013, Japan. saknm76@yahoo.co.jp

Radiation Medicine

|September 9, 2006

Summary

Omental torsion, a rare cause of abdominal pain, can be diagnosed preoperatively. Computed tomography reveals a characteristic whirling pattern, enabling prompt surgical confirmation and treatment.

More Related Videos

Method to Measure Tone of Axial and Proximal Muscle

Method to Measure Tone of Axial and Proximal Muscle

Published on: December 14, 2011

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Published on: May 23, 2013

Related Experiment Videos

Last Updated: Jul 20, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Published on: August 22, 2025

Method to Measure Tone of Axial and Proximal Muscle

Method to Measure Tone of Axial and Proximal Muscle

Published on: December 14, 2011

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Published on: May 23, 2013

Area of Science:

Gastroenterology
Radiology
Surgical Pathology

Background:

Omental torsion is an uncommon surgical emergency that can mimic other causes of acute abdominal pain.
Early diagnosis is crucial for optimal patient outcomes and to avoid unnecessary surgical interventions.

Observation:

A 65-year-old male presented with acute right lower abdominal pain.
Abdominal computed tomography (CT) demonstrated a characteristic "whirl" sign of the greater omentum, with fatty streaks and vessels converging centrally.

Findings:

The CT findings were highly suggestive of omental torsion.
Surgical exploration and subsequent pathological examination confirmed the diagnosis of omental torsion.

Implications:

Computed tomography is a valuable tool for the preoperative diagnosis of omental torsion.
Recognizing the typical CT appearance can lead to timely surgical intervention, improving patient management and reducing morbidity.