title: Endorectal multiparametric MRI of the prostate: incremental effect of perfusion imaging on biopsy target identification.
abstract: OBJECTIVE
  To evaluate the incremental effect of perfusion imaging on biopsy target identification at endorectal multiparametric prostate magnetic resonance imaging (MRI).
  
  
  METHODS
  We retrospectively 52 patients who underwent endorectal multiparametric prostate MRI for suspected or untreated prostate cancer. Two readers independently identified biopsy targets without and with perfusion images.
  
  
  RESULTS
  Reader 1 identified 36 targets without and 39 targets with perfusion imaging (P>.05). The corresponding numbers for reader 2 were 38 and 38, respectively (P=.5).
  
  
  CONCLUSIONS
  Perfusion imaging does not significantly increase the number of biopsy targets identified at endorectal multiparametric prostate MRI.
authors.affiliation: Department of Diagnostic Radiology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code: L340, Portland, OR 97239.
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Romero
authors.affiliation: Department of Diagnostic Radiology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code: L340, Portland, OR 97239.
authors.forename: Bryan R
authors.initials: BR
authors.lastname: Foster
authors.affiliation: Department of Diagnostic Radiology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code: L340, Portland, OR 97239.
authors.forename: David R
authors.initials: DR
authors.lastname: Pettersson
authors.affiliation: Department of Diagnostic Radiology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code: L340, Portland, OR 97239.
authors.forename: Alice W
authors.initials: AW
authors.lastname: Fung
authors.affiliation: Department of Diagnostic Radiology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code: L340, Portland, OR 97239.
authors.forename: Alexander R
authors.initials: AR
authors.lastname: Guimaraes
authors.affiliation: Department of Diagnostic Radiology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code: L340, Portland, OR 97239. Electronic address: coakleyf@ohsu.edu.
authors.forename: Fergus V
authors.initials: FV
authors.lastname: Coakley
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003287:Contrast Media / Q000008:administration & dosage; D006801:Humans; D061705:Image-Guided Biopsy; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010477:Perfusion; D011467:Prostate / Q000000981:diagnostic imaging* / Q000473:pathology; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D012189:Retrospective Studies
chemical_list: D003287:Contrast Media
keywords: Diffusion; MRI; Perfusion; Prostate biopsy; Prostate cancer