[Dynamic contrast-enhanced MRI of the prostate: comparison of two different post-processing algorithms]. / Dynamische kontrastmittelunterstützte MRT der Prostata: Vergleich von zwei Auswerteverfahren.
Rofo
; 183(5): 456-61, 2011 May.
Article
em De
| MEDLINE
| ID: mdl-21442558
ABSTRACT
PURPOSE:
To evaluate the usefulness of a commercially available post-processing software tool for detecting prostate cancer on dynamic contrast-enhanced magnetic resonance imaging (MRI) and to compare the results to those obtained with a custom-made post-processing algorithm already tested under clinical conditions. MATERIALS ANDMETHODS:
Forty-eight patients with proven prostate cancer were examined by standard MRI supplemented by dynamic contrast-enhanced dual susceptibility contrast (DCE-DSC) MRI prior to prostatectomy. A custom-made post-processing algorithm was used to analyze the MRI data sets and the results were compared to those obtained using a post-processing algorithm from In vivo Corporation (Dyna CAD for Prostate) applied to dynamic T 1-weighted images. Histology was used as the gold standard.RESULTS:
The sensitivity for prostate cancer detection was 78 % for the custom-made algorithm and 60 % for the commercial algorithm and the specificity was 79 % and 82 %, respectively. The accuracy was 79 % for our algorithm and 77.5 % for the commercial software tool. The chi-square test (McNemar-Bowker test) yielded no significant differences between the two tools (p = 0.06).CONCLUSION:
The two investigated post-processing algorithms did not differ in terms of prostate cancer detection. The commercially available software tool allows reliable and fast analysis of dynamic contrast-enhanced MRI for the detection of prostate cancer.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
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Processamento de Imagem Assistida por Computador
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Software
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Imageamento por Ressonância Magnética
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Angiografia por Ressonância Magnética
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Imageamento Tridimensional
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
Limite:
Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
De
Ano de publicação:
2011
Tipo de documento:
Article