Psychophysical evaluation of in-situ ultrasound visualization

Bing Wu, Roberta L. Klatzky, Damion Shelton, George D. Stetten

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We present a novel psychophysical method for evaluating ultrasonography based on Real-Time Tomographic Reflection (RTTR), in comparison to Conventional Ultrasound (CUS). The method measures the user's perception of the location of an ultrasound-imaged target independently from assessing the action employed to reach it. Three experiments were conducted with the Sonic Flashlight (SF), an RTTR device, and CUS. The first two experiments determined subjects' perception of target location with a triangulation-by-pointing task. Depth perception with the SF was comparable to direct vision, while CUS caused considerable underestimation of target depth. Binocular depth information in the SF was shown to significantly contribute to its superiority. The third experiment tested subjects in an ultrasound-guided needle insertion task. Because the SF provides visualization of the target at its actual location, subjects performed insertions faster and more accurately by using the SF rather than CUS. Furthermore, the trajectory analysis showed that insertions with the SF generally went directly to the target along the desired path, while CUS often led to a large deviation from the correct path consistent with the observed underestimation of target depth. These findings lend great promise to the use of RTTR-based imaging in clinical practice and provide precise means of assessing efficacy.

Original languageEnglish (US)
Pages (from-to)684-693
Number of pages10
JournalIEEE Transactions on Visualization and Computer Graphics
Volume11
Issue number6
DOIs
StatePublished - Nov 2005
Externally publishedYes

Fingerprint

Flashlights
Visualization
Ultrasonics
Depth perception
Ultrasonography
Binoculars
Experiments
Triangulation
Needles
Trajectories
Imaging techniques

Keywords

  • And virtual realities
  • Artificial
  • Augmented
  • Evaluation/methodology
  • Image display
  • Medical information systems
  • Psychology
  • Real time

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Software

Cite this

Psychophysical evaluation of in-situ ultrasound visualization. / Wu, Bing; Klatzky, Roberta L.; Shelton, Damion; Stetten, George D.

In: IEEE Transactions on Visualization and Computer Graphics, Vol. 11, No. 6, 11.2005, p. 684-693.

Research output: Contribution to journalArticle

Wu, Bing ; Klatzky, Roberta L. ; Shelton, Damion ; Stetten, George D. / Psychophysical evaluation of in-situ ultrasound visualization. In: IEEE Transactions on Visualization and Computer Graphics. 2005 ; Vol. 11, No. 6. pp. 684-693.
@article{55cb5867b80441bda40260117ee842a5,
title = "Psychophysical evaluation of in-situ ultrasound visualization",
abstract = "We present a novel psychophysical method for evaluating ultrasonography based on Real-Time Tomographic Reflection (RTTR), in comparison to Conventional Ultrasound (CUS). The method measures the user's perception of the location of an ultrasound-imaged target independently from assessing the action employed to reach it. Three experiments were conducted with the Sonic Flashlight (SF), an RTTR device, and CUS. The first two experiments determined subjects' perception of target location with a triangulation-by-pointing task. Depth perception with the SF was comparable to direct vision, while CUS caused considerable underestimation of target depth. Binocular depth information in the SF was shown to significantly contribute to its superiority. The third experiment tested subjects in an ultrasound-guided needle insertion task. Because the SF provides visualization of the target at its actual location, subjects performed insertions faster and more accurately by using the SF rather than CUS. Furthermore, the trajectory analysis showed that insertions with the SF generally went directly to the target along the desired path, while CUS often led to a large deviation from the correct path consistent with the observed underestimation of target depth. These findings lend great promise to the use of RTTR-based imaging in clinical practice and provide precise means of assessing efficacy.",
keywords = "And virtual realities, Artificial, Augmented, Evaluation/methodology, Image display, Medical information systems, Psychology, Real time",
author = "Bing Wu and Klatzky, {Roberta L.} and Damion Shelton and Stetten, {George D.}",
year = "2005",
month = "11",
doi = "10.1109/TVCG.2005.104",
language = "English (US)",
volume = "11",
pages = "684--693",
journal = "IEEE Transactions on Visualization and Computer Graphics",
issn = "1077-2626",
publisher = "IEEE Computer Society",
number = "6",

}

TY - JOUR

T1 - Psychophysical evaluation of in-situ ultrasound visualization

AU - Wu, Bing

AU - Klatzky, Roberta L.

AU - Shelton, Damion

AU - Stetten, George D.

PY - 2005/11

Y1 - 2005/11

N2 - We present a novel psychophysical method for evaluating ultrasonography based on Real-Time Tomographic Reflection (RTTR), in comparison to Conventional Ultrasound (CUS). The method measures the user's perception of the location of an ultrasound-imaged target independently from assessing the action employed to reach it. Three experiments were conducted with the Sonic Flashlight (SF), an RTTR device, and CUS. The first two experiments determined subjects' perception of target location with a triangulation-by-pointing task. Depth perception with the SF was comparable to direct vision, while CUS caused considerable underestimation of target depth. Binocular depth information in the SF was shown to significantly contribute to its superiority. The third experiment tested subjects in an ultrasound-guided needle insertion task. Because the SF provides visualization of the target at its actual location, subjects performed insertions faster and more accurately by using the SF rather than CUS. Furthermore, the trajectory analysis showed that insertions with the SF generally went directly to the target along the desired path, while CUS often led to a large deviation from the correct path consistent with the observed underestimation of target depth. These findings lend great promise to the use of RTTR-based imaging in clinical practice and provide precise means of assessing efficacy.

AB - We present a novel psychophysical method for evaluating ultrasonography based on Real-Time Tomographic Reflection (RTTR), in comparison to Conventional Ultrasound (CUS). The method measures the user's perception of the location of an ultrasound-imaged target independently from assessing the action employed to reach it. Three experiments were conducted with the Sonic Flashlight (SF), an RTTR device, and CUS. The first two experiments determined subjects' perception of target location with a triangulation-by-pointing task. Depth perception with the SF was comparable to direct vision, while CUS caused considerable underestimation of target depth. Binocular depth information in the SF was shown to significantly contribute to its superiority. The third experiment tested subjects in an ultrasound-guided needle insertion task. Because the SF provides visualization of the target at its actual location, subjects performed insertions faster and more accurately by using the SF rather than CUS. Furthermore, the trajectory analysis showed that insertions with the SF generally went directly to the target along the desired path, while CUS often led to a large deviation from the correct path consistent with the observed underestimation of target depth. These findings lend great promise to the use of RTTR-based imaging in clinical practice and provide precise means of assessing efficacy.

KW - And virtual realities

KW - Artificial

KW - Augmented

KW - Evaluation/methodology

KW - Image display

KW - Medical information systems

KW - Psychology

KW - Real time

UR - http://www.scopus.com/inward/record.url?scp=27644516304&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27644516304&partnerID=8YFLogxK

U2 - 10.1109/TVCG.2005.104

DO - 10.1109/TVCG.2005.104

M3 - Article

C2 - 16270861

AN - SCOPUS:27644516304

VL - 11

SP - 684

EP - 693

JO - IEEE Transactions on Visualization and Computer Graphics

JF - IEEE Transactions on Visualization and Computer Graphics

SN - 1077-2626

IS - 6

ER -