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Titolo:
Brain tumor volume measurement: Comparison of manual and semiautomated methods
Autore:
Joe, BN; Fukui, MB; Meltzer, CC; Huang, QS; Day, RS; Greer, PJ; Bozik, ME;
Indirizzi:
Univ Pittsburgh, Med Ctr, Dept Radiol, Div Neuroradiol, Pittsburgh, PA USAUniv Pittsburgh Pittsburgh PA USA l, Div Neuroradiol, Pittsburgh, PA USA Univ Pittsburgh, Med Ctr, Dept Psychiat, Pittsburgh, PA USA Univ Pittsburgh Pittsburgh PA USA Ctr, Dept Psychiat, Pittsburgh, PA USA Univ Pittsburgh, Med Ctr, Dept Neurosurg, Pittsburgh, PA USA Univ Pittsburgh Pittsburgh PA USA tr, Dept Neurosurg, Pittsburgh, PA USA Univ Pittsburgh, Med Ctr, Dept Neurol, Pittsburgh, PA USA Univ PittsburghPittsburgh PA USA d Ctr, Dept Neurol, Pittsburgh, PA USA Univ Pittsburgh, Med Ctr, Dept Med, Pittsburgh, PA USA Univ Pittsburgh Pittsburgh PA USA Med Ctr, Dept Med, Pittsburgh, PA USA Univ Pittsburgh, Med Ctr, Pittsburgh Canc Inst, Pittsburgh, PA USA Univ Pittsburgh Pittsburgh PA USA ttsburgh Canc Inst, Pittsburgh, PA USA
Titolo Testata:
RADIOLOGY
fascicolo: 3, volume: 212, anno: 1999,
pagine: 811 - 816
SICI:
0033-8419(199909)212:3<811:BTVMCO>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
MRI SEGMENTATION; CONTRAST ENHANCEMENT; STEREOTACTIC BIOPSY; INTRACRANIAL TUMORS; GLIOMAS; ASTROCYTOMAS; NEOPLASMS; THERAPY; IMAGES; GRADE;
Keywords:
brain neoplasms; brain neoplasms, MR; magnetic resonance (MR), volume measurement; technology assessment;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Fukui, MB Presbyterian Univ Hosp, Dept Radiol, Rm D-132,200 Lothrop St, Pittsburgh, PA 15213 USA Presbyterian Univ Hosp Rm D-132,200 Lothrop St Pittsburgh PA USA 15213
Citazione:
B.N. Joe et al., "Brain tumor volume measurement: Comparison of manual and semiautomated methods", RADIOLOGY, 212(3), 1999, pp. 811-816

Abstract

PURPOSE: To compare the reliability of two approaches to measuring enhancing brain tumor volumes-the conventional manual trace method and a threshold-based, semiautomated computer software method. MATERIALS AND METHODS: Two operators rated contrast material-enhanced, T1-weighted axial magnetic resonance (MR) image data sets from 16 patients aged 21-71 years with high-grade gliomas. Each MR data set was rated twice by using manual tracing and twice by using the semiautomated method. The semiautomated measurement method involved a thresholding algorithm based on mixture modeling. The data collection time for each method was recorded. Reliability was measured by using inter- and intraoperator agreement indexes. RESULTS: Mean intraoperator agreement indexes (+/-SD) were 0.90 +/- 0.09 (operator 1) and 0.83 +/- 0.15 (operator 2) for the manual trace method and 0.83 +/- 0.17 (operator 1) and 0.84 +/- 0.16 (operator 2) for the semiautomated measurement method. The mean interoperator agreement was 0.85 +/- 0.14for the manual method and 0.82 +/- 0.18 for the semiautomated method. The semiautomated method was faster than the manual trace method by an average of 4.6 minutes per patient. CONCLUSION: The semiautomated computer method of measuring tumor volume was faster than the manual trace method. Semiautomated computer approaches offer an alternative to manual tracing for measuring serial tumor volumes in patients with high-grade brain neoplasms.

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Documento generato il 01/12/20 alle ore 16:44:21