Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 18, 2026

Practical Considerations for the Design, Execution, and Interpretation of Studies Involving Whole-Bone Bending Tests of Rodent Bones
04:20

Practical Considerations for the Design, Execution, and Interpretation of Studies Involving Whole-Bone Bending Tests of Rodent Bones

Published on: September 1, 2023

Radiation dose to the lens using different temporal bone CT scanning protocols.

Y Niu1, Z Wang, Y Liu

  • 1Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China.

AJNR. American Journal of Neuroradiology
|November 7, 2009
PubMed
Summary

Temporal bone CT scans expose eye lenses to radiation. A modified helical scanning protocol significantly reduces lens radiation dose compared to conventional methods, enhancing patient safety.

Related Concept Videos

Computed Tomography01:10

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

Shifts in expectations: evaluating physicians' perceptions as pharmacists become integrated into family practice.

Journal of interprofessional care·2009
Same author

Role of peritoneal mesothelial cells in peritonitis.

The British journal of surgery·2003
Same author

Bacterial translocation in a non-lethal rat model of peritonitis.

Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland·2003
Same author

Anti-B4-blocked ricin synergizes with doxorubicin and etoposide on multidrug-resistant and drug-sensitive tumors.

Blood·1995
Same author

Multiple lineages of tumors express a common tumor antigen, P1A, but they are not cross-protected.

Journal of immunology (Baltimore, Md. : 1950)·1995
Same author

Bcl-2 protects neural cells from cyanide/aglycemia-induced lipid oxidation, mitochondrial injury, and loss of viability.

Journal of neurochemistry·1995

Area of Science:

  • Radiological physics and medical imaging.
  • Radiation protection in diagnostic procedures.

Background:

  • Temporal bone computed tomography (CT) is a common diagnostic imaging technique.
  • The eye lens receives ionizing radiation during temporal bone CT, offering no diagnostic benefit.

Purpose of the Study:

  • To evaluate and compare radiation doses to the eye lens across different temporal bone CT scanning protocols.
  • To identify methods for minimizing lens radiation exposure during CT scans.

Main Methods:

  • Exsomatized cadaveric head CT using sequential, routine helical, and modified helical scanning modes.
  • Dosimetry measurements included computed tomography dose index (CTDIvol), dose length product (DLP), effective dose, and organ dose to the lens using thermoluminescent dosimeters (TLDs).
  • Parameters such as kVp, mAs, pitch, section thickness, and scanning baseline were varied.

Related Experiment Videos

Last Updated: Jun 18, 2026

Practical Considerations for the Design, Execution, and Interpretation of Studies Involving Whole-Bone Bending Tests of Rodent Bones
04:20

Practical Considerations for the Design, Execution, and Interpretation of Studies Involving Whole-Bone Bending Tests of Rodent Bones

Published on: September 1, 2023

Main Results:

  • Sequential scanning resulted in higher effective doses (1.21 mSv) and lens doses (50.96 mGy axial, 1.73 mGy coronal).
  • Routine helical scanning yielded an effective dose of 0.803 mSv and a lens dose of 40.17 mGy.
  • The modified helical scanning protocol maintained similar effective doses but significantly reduced lens dose to 10.33 mGy.

Conclusions:

  • Sequential axial and coronal CT protocols deliver higher effective and lens radiation doses compared to helical scanning.
  • A modified helical scanning approach allows for thinner reconstructions and a substantial reduction (74.3%) in eye lens radiation dose.
  • Optimized helical CT protocols are crucial for minimizing lens radiation exposure in temporal bone imaging.