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

Imaging Studies III: Computed Tomography

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...

Computed Tomography

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

You might also read

Related Articles

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

Sort by

Same author

Mechanisms involved in ceramide-induced cell cycle arrest in human hepatocarcinoma cells.

World journal of gastroenterology·2007

Same author

A population-based survey of women's traditional postpartum behaviours in Northern China.

Midwifery·2007

Same author

A glimpse of streptococcal toxic shock syndrome from comparative genomics of S. suis 2 Chinese isolates.

PloS one·2007

Same author

Colon carcinoma cells harboring PIK3CA mutations display resistance to growth factor deprivation induced apoptosis.

Molecular cancer therapeutics·2007

Same author

[Surgical treatment of 402 consecutive cases for hilar cholangiocarcinoma: Chinese single center experience].

Zhonghua wai ke za zhi [Chinese journal of surgery]·2007

Same author

Highly convergent route to cyclopeptide alkaloids: total synthesis of ziziphine N.

Organic letters·2007

Search research articles

Related Experiment Video

Updated: Jun 6, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

Scatter correction for cone-beam computed tomography using moving blocker strips: a preliminary study.

Jing Wang¹, Weihua Mao, Timothy Solberg

¹Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, Texas 75390, USA. jing.wang@utsouthwestern.edu

Medical Physics

|December 17, 2010

Summary

This study introduces a blocker-based method to reduce scatter contamination in cone-beam computed tomography (CBCT) scans. The technique effectively corrects artifacts and improves image accuracy for better diagnostic quality.

More Related Videos

Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images

Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images

Published on: February 23, 2024

Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans

Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans

Published on: September 8, 2023

Related Experiment Videos

Last Updated: Jun 6, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images

Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images

Published on: February 23, 2024

Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans

Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans

Published on: September 8, 2023

Area of Science:

Medical Imaging Physics
Radiological Sciences
Computational Imaging

Background:

Cone-beam computed tomography (CBCT) suffers from scatter contamination, degrading image quality and diagnostic accuracy.
Scatter artifacts manifest as reduced contrast, shading, and inaccurate CT numbers, posing a challenge for clinical applications.

Purpose of the Study:

To propose and evaluate a novel blocker-based approach for simultaneous scatter estimation and volumetric reconstruction in CBCT.
To mitigate scatter-induced artifacts and enhance the overall image quality of CBCT.

Main Methods:

A moving lead strip attenuator (blocker) was inserted between the X-ray source and patient during CBCT acquisition.
Scatter signal was estimated by interpolating data from blocked regions, followed by scatter subtraction.
Modified Feldkamp-Davis-Kress (FDK) and iterative reconstruction algorithms were employed for image reconstruction.

Main Results:

Substantial reduction in scatter-induced shading/cupping artifacts was observed.
Mean relative error decreased from 25% to 2-3% in simulation studies.
CT number errors in experimental phantom studies were reduced from 256 to under 20.

Conclusions:

The proposed blocker-based method offers an effective scatter correction scheme for CBCT.
This approach enables simultaneous scatter estimation, reduced imaging dose, and complete volumetric data acquisition.
The technique significantly improves CBCT image quality and accuracy for clinical use.