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 Videos

Filtered backprojection for modifying the impulse response of circular tomosynthesis.

G M Stevens1, R Fahrig, N J Pelc

  • 1Department of Radiology, Stanford University, California 94305, USA. gstevens@s-word.stanford.edu

Medical Physics
|April 25, 2001
PubMed
Summary

A new filtering technique improves circular motion tomosynthesis imaging. It creates more homogeneous blurring for out-of-focus objects, reducing structured artifacts in medical images.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Investigation of combined kV/MV CBCT imaging with a high-DQE MV detector.

Medical physics·2018
Same author

Motion compensation for cone-beam CT using Fourier consistency conditions.

Physics in medicine and biology·2017
Same author

SU-D-218-03: Resonant Frequency of Rotating Anode X-Ray Tubes.

Medical physics·2017
Same author

SU-E-I-80: Optimizing Scanning-Beam Digital X-Ray Tomosynthesis of the Lungs.

Medical physics·2017
Same author

TU-E-BRA-05: Reverse Geometry Imaging with MV Detector for Improved Image Resolution.

Medical physics·2017
Same author

SU-E-I-22: Metal Artifact Correction Using KV and Selective MV Imaging.

Medical physics·2017

Area of Science:

  • Medical Imaging
  • Digital Signal Processing

Background:

  • Circular motion tomosynthesis (CMT) is an imaging technique.
  • Off-focal plane objects in CMT can appear with structured blurring.
  • Alternative imaging geometries offer different blurring characteristics.

Purpose of the Study:

  • To develop a filtering technique to modify the 3D impulse response of CMT.
  • To enable CMT to generate images resembling other imaging geometries.
  • To improve the homogeneity of blurring for out-of-plane objects.

Main Methods:

  • A novel filtering process was developed.
  • The technique modifies the three-dimensional impulse response of CMT.
  • The impulse response was altered from a ring to a disk shape.

Related Experiment Videos

Main Results:

  • The filtering technique successfully modified the impulse response of CMT.
  • Reconstructed images exhibit more homogeneous blurring for off-focal plane objects.
  • The structured appearance of blurred out-of-plane objects was reduced.

Conclusions:

  • The developed filtering technique enhances CMT image quality.
  • This method reduces undesirable structured artifacts from out-of-plane objects.
  • The technique offers a way to achieve image appearance similar to other tomographic methods.