A Visual-Search Model Observer for Multitarget Volumetric SPECT Images

Kheya Banerjee; Anando Sen; Dev P. Chakraborty; Howard C. Gifford

A Visual-Search Model Observer for Multitarget Volumetric SPECT Images

Kheya Banerjee, Anando Sen, Dev P. Chakraborty, Howard C. Gifford

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The main objective of this work was to test a visual search (VS) human-model observer for a multitarget tumor localization task featuring single photon emission computed tomography (SPECT) image volumes. The image volumes were simulated from a digital anthropomorphic phantom containing tumors of three different sizes in the prostate and lymph-node areas of a single phantom. Image volumes were simulated with six different lesion to background contrast ratios. This paper reports the comparison between the VS and the channelized non pre-whitening (CNPW) observers with jackknife free-response ROC (JAFROC) study. The performance of the VS was always lower than that of the CNPW and as the contrast increased, the performance was also increased for both the model-observers. The results were consistent with previous results obtained from 2D single-slice studies.

Original language	English
Title of host publication	Fully3D Recon 2015
Subtitle of host publication	Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
Pages	114-117
Number of pages	4
Publication status	Published - 2015
Externally published	Yes
Event	13th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine - Duration: 1 Jun 2015 → …

Conference

Conference	13th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
Period	1/06/15 → …

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http://www.fully3d.org/2015/Fully3D_Proceedings_2015.pdf

Cite this

@inproceedings{6ac7c22d96c0436cb3b208ddc22fc8d4,

title = "A Visual-Search Model Observer for Multitarget Volumetric SPECT Images",

abstract = "The main objective of this work was to test a visual search (VS) human-model observer for a multitarget tumor localization task featuring single photon emission computed tomography (SPECT) image volumes. The image volumes were simulated from a digital anthropomorphic phantom containing tumors of three different sizes in the prostate and lymph-node areas of a single phantom. Image volumes were simulated with six different lesion to background contrast ratios. This paper reports the comparison between the VS and the channelized non pre-whitening (CNPW) observers with jackknife free-response ROC (JAFROC) study. The performance of the VS was always lower than that of the CNPW and as the contrast increased, the performance was also increased for both the model-observers. The results were consistent with previous results obtained from 2D single-slice studies.",

author = "Kheya Banerjee and Anando Sen and Chakraborty, \{Dev P.\} and Gifford, \{Howard C.\}",

year = "2015",

language = "English",

pages = "114--117",

booktitle = "Fully3D Recon 2015",

note = "13th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine ; Conference date: 01-06-2015",

}

Banerjee, K, Sen, A, Chakraborty, DP & Gifford, HC 2015, A Visual-Search Model Observer for Multitarget Volumetric SPECT Images. in Fully3D Recon 2015: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine. pp. 114-117, 13th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 1/06/15. <http://www.fully3d.org/2015/Fully3D_Proceedings_2015.pdf>

TY - GEN

T1 - A Visual-Search Model Observer for Multitarget Volumetric SPECT Images

AU - Banerjee, Kheya

AU - Sen, Anando

AU - Chakraborty, Dev P.

AU - Gifford, Howard C.

PY - 2015

Y1 - 2015

N2 - The main objective of this work was to test a visual search (VS) human-model observer for a multitarget tumor localization task featuring single photon emission computed tomography (SPECT) image volumes. The image volumes were simulated from a digital anthropomorphic phantom containing tumors of three different sizes in the prostate and lymph-node areas of a single phantom. Image volumes were simulated with six different lesion to background contrast ratios. This paper reports the comparison between the VS and the channelized non pre-whitening (CNPW) observers with jackknife free-response ROC (JAFROC) study. The performance of the VS was always lower than that of the CNPW and as the contrast increased, the performance was also increased for both the model-observers. The results were consistent with previous results obtained from 2D single-slice studies.

AB - The main objective of this work was to test a visual search (VS) human-model observer for a multitarget tumor localization task featuring single photon emission computed tomography (SPECT) image volumes. The image volumes were simulated from a digital anthropomorphic phantom containing tumors of three different sizes in the prostate and lymph-node areas of a single phantom. Image volumes were simulated with six different lesion to background contrast ratios. This paper reports the comparison between the VS and the channelized non pre-whitening (CNPW) observers with jackknife free-response ROC (JAFROC) study. The performance of the VS was always lower than that of the CNPW and as the contrast increased, the performance was also increased for both the model-observers. The results were consistent with previous results obtained from 2D single-slice studies.

M3 - Conference contribution

SP - 114

EP - 117

BT - Fully3D Recon 2015

T2 - 13th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine

Y2 - 1 June 2015

ER -

A Visual-Search Model Observer for Multitarget Volumetric SPECT Images

Abstract

Conference

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