Diffusion-Weighted Magnetic Resonance Diagnosis of Local Recurrences of Prostate Cancer after Radical Prostatectomy : Preliminary Evaluation on Twenty-Seven Cases
Joint Authors
Volterrani, Luca
Cacchiarelli, Eleonora
Ricci, Veronica
Carbone, Salvatore Francesco
La Penna, Augusto
Tini, Paolo
Pirtoli, Luigi
Carfagno, Tommaso
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-16
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Objectives.
To assess the diagnostic performance of diffusion-weighted MR imaging (DWI) in patients affected by prostatic fossa (PF) relapse after radical prostatectomy (RP) for prostatic carcinoma (PC).
Methods.
Twenty-seven patients showing a nodular lesion in the PF at T2-weighted MR imaging after RP, with diagnosis of PC relapse established by biopsy or PSA determinations, were investigated by DWI.
Two readers evaluated the DWI results in consensus and the apparent diffusion coefficient (ADC) of the nodules, separately; a mean value was obtained (ADCm).
Results.
Relapses did not significantly differ in size in respect of postsurgical benign nodules.
The DWI qualitative evaluation showed sensitivity, specificity, accuracy, ppv, and npv values, respectively, of 83.3%, 88.9%, 85.2%, 93.7%, and 72.7% (100%, 87.5%, 95.6%, 93.7%, and 100%, for nodules >6 mm).
The intraclass correlation coefficient (ICC) for ADC evaluation between the two readers was 0.852 (95% CI 0.661–0.935; P=0.0001).
The ADCm values for relapses and benign nodules were, respectively, 0.98±0.21×10−3 mm2/sec and 1.24±0.32×10−3 mm2/sec (P=0.006).
Sensitivity, specificity, accuracy, ppv and npv of ADCm were, respectively, 77.8%, 88.9%, 81.8%, 93.3%, and 66.7% (93.3%, 87.5%, 85.4%, 93.3%, and 87.5% for nodules >6 mm).
Conclusions.
Diffusion-weighted MR imaging is a promising tool in the management of a hyperintense nodule detected by T2-weighted sequences.
This might have a relevant importance in contouring radiotherapy treatment volumes.
American Psychological Association (APA)
Carbone, Salvatore Francesco& Pirtoli, Luigi& Ricci, Veronica& Carfagno, Tommaso& Tini, Paolo& La Penna, Augusto…[et al.]. 2014. Diffusion-Weighted Magnetic Resonance Diagnosis of Local Recurrences of Prostate Cancer after Radical Prostatectomy : Preliminary Evaluation on Twenty-Seven Cases. BioMed Research International،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-497456
Modern Language Association (MLA)
Carbone, Salvatore Francesco…[et al.]. Diffusion-Weighted Magnetic Resonance Diagnosis of Local Recurrences of Prostate Cancer after Radical Prostatectomy : Preliminary Evaluation on Twenty-Seven Cases. BioMed Research International No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-497456
American Medical Association (AMA)
Carbone, Salvatore Francesco& Pirtoli, Luigi& Ricci, Veronica& Carfagno, Tommaso& Tini, Paolo& La Penna, Augusto…[et al.]. Diffusion-Weighted Magnetic Resonance Diagnosis of Local Recurrences of Prostate Cancer after Radical Prostatectomy : Preliminary Evaluation on Twenty-Seven Cases. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-497456
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-497456