Can the spherical gold standards be used as an alternative to painted gold standards for the computerized detection of lesions using voxel-based classification?
Purpose: For the development of computer-assisted detection (CAD) software using voxel-based classification, gold standards defined by pixel-by-pixel painting, called painted gold standards, are desirable. However, for radiologists who define gold standards, a simplified method of definition is desi...
| Published in: | Japanese Journal of Radiology Vol. 37; no. 3; pp. 264 - 274 |
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| Main Authors: | , , , , , , , |
| Format: | algorithm diagnostic images equations & formulas research tables/charts Journal Article |
| Published: |
Springer Nature
Mar2019
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=135148143&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 135148143 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 18671071 AUCM jtl: Japanese Journal of Radiology issn: 18671071 maglogo: N pubinfo: dt: Mar2019 vid: 37 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 135148143 135148143 NLM30343401 135148143 10.1007/s11604-018-0784-6 NLM30343401 135148143 ppf: 264 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Can the spherical gold standards be used as an alternative to painted gold standards for the computerized detection of lesions using voxel-based classification? aug: au: Nomura, Yukihiro Hayashi, Naoto Hanaoka, Shouhei Takenaga, Tomomi Nemoto, Mitsutaka Miki, Soichiro Yoshikawa, Takeharu Abe, Osamu affil: Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, 113-8655, Tokyo, Japan sug: subj: Magnetic Resonance Angiography Methods Magnetic Resonance Angiography Standards Lung Neoplasms Image Interpretation, Computer Assisted Standards Cerebral Aneurysm Image Interpretation, Computer Assisted Methods Brain Paint Software Lung Data Collection Funding Source Human ab: Purpose: For the development of computer-assisted detection (CAD) software using voxel-based classification, gold standards defined by pixel-by-pixel painting, called painted gold standards, are desirable. However, for radiologists who define gold standards, a simplified method of definition is desirable. One of the simplest methods of defining gold standards is a spherical region, called a spherical gold standard. In this study, we investigated whether spherical gold standards can be used as an alternative to painted gold standards for computerized detection using voxel-based classification.Materials and Methods: The spherical gold standards were determined by the center of gravity and the maximum diameter. We compared two types of gold standard, painted gold standards and spherical gold standards, by two types of CAD software using voxel-based classification.Results: The time required to paint the area of one lesion was 4.7-6.5 times longer than the time required to define a spherical gold standard. For the same performance of the CAD software, the number of training cases required for the spherical gold standard was 1.6-7.6 times that for the painted gold standards.Conclusion: Spherical gold standards can be used as an alternative to painted gold standards for the computerized detection of lesions with simple shapes. pubtype: Academic Journal doctype: algorithm diagnostic images equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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