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

Hardware assessment using the multi-module, multi-resolution system (M3R): a signal-detection study.

Jacob Y Hesterman1, Matthew A Kupinski, Eric Clarkson

  • 1University of Arizona College of Optical Sciences, 1630 E. University Boulevard, Tucson, Arizona 85721, USA. jyh@email.arizona.edu

Medical Physics
|September 8, 2007
PubMed
Summary
This summary is machine-generated.

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

Initial Clinical Experience with [<sup>177</sup>Lu]Lu-RTX-2358 Radiopharmaceutical Therapy Targeting Fibroblast Activation Protein: Biodistribution, Pharmacokinetics, and Dosimetry.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same author

Biodistribution and Radiation Dosimetry for [<sup>68</sup>Ga]Ga-LNTH-1363S, a Probe Targeting Fibroblast Activation Protein α.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2025
Same author

Examination of aperture layout designs for an adaptive-stationary multi-pinhole brain-dedicated SPECT system.

Medical physics·2025
Same author

Correction of multiplexing artefacts in multi-pinhole SPECT through temporal shuttering, de-multiplexing of projections, and alternating reconstruction.

Physics in medicine and biology·2024
Same author

Evaluation of a semi-automated approach for FDG PET image analysis for routine clinical application in patients with multiple myeloma.

Translational oncology·2023
Same author

Performing tomographic reconstructions from a satellite looking toward Earth. Part 1: implementation and limitations.

Journal of the Optical Society of America. A, Optics, image science, and vision·2022
Same journal

Multi-view constrained semi-supervised vertebra detection for 3D ultrasound spine volume.

Medical physics·2026
Same journal

Accuracy of quantitative <sup>177</sup>Lu SPECT/CT imaging: A systematic review.

Medical physics·2026
Same journal

Physics-constrained dual-domain network for CBCT reconstruction from orthogonal X-rays in gynecologic radiotherapy.

Medical physics·2026
Same journal

Decomposition-based harmonization for quantitative PET imaging across scanners and radiotracers.

Medical physics·2026
Same journal

Development and evaluation of an in vivo dose-based monitoring system for electron FLASH radiation therapy.

Medical physics·2026
Same journal

A novel optical respiratory gating system with a hybrid phase-amplitude algorithm for spot-scanning proton therapy.

Medical physics·2026
See all related articles

This study validates simulated backgrounds for signal detection research using the multi-module, multi-resolution (M3R) system. Optimized apertures improve observer performance in textured backgrounds, crucial for hardware assessment.

Area of Science:

  • Medical physics
  • Image analysis
  • Observer performance studies

Background:

  • Objective, task-based signal detection studies require robust hardware assessment.
  • Simulated backgrounds are often used, but validation with real systems is crucial.
  • The multi-module, multi-resolution (M3R) system offers a platform for such validation.

Purpose of the Study:

  • To validate the use of simulated lumpy backgrounds in observer studies using the M3R system.
  • To investigate signal-to-noise ratio (SNR) dependence on exposure time.
  • To evaluate signal-detection performance (AUC) with varying M3R aperture configurations, signal sizes, and background lump sizes.

Main Methods:

  • A novel phantom generating multiple textured backgrounds was introduced.

Related Experiment Videos

  • SNR was measured using phantom backgrounds and compared against theoretical predictions.
  • Signal-detection performance was assessed using the channelized Hotelling observer with Laguerre-Gauss channels across 20 M3R aperture combinations.

    • Main Results:

    • Measured SNR exhibited a power-law dependence on exposure time, aligning with theoretical predictions.
    • The use of simulated lumpy backgrounds was validated for observer studies.
    • Optimal M3R aperture configurations were identified for specific signal and lump size combinations, enhancing AUC.

    Conclusions:

    • The M3R system and phantom provide a validated platform for hardware assessment in signal detection.
    • Simulated lumpy backgrounds are effective for observer studies.
    • Task-specific aperture optimization is essential for maximizing observer performance in imaging systems.