title: Improved breast cancer detection of prone breast fluorodeoxyglucose-PET in 118 patients.
abstract: OBJECTIVE
  To prospectively evaluate the breast cancer detection of prone breast positron emission tomography (PET) images in comparison with supine whole-body PET images.
  
  
  METHODS
  One hundred and eighteen female patients (age range 28-91 years) with 122 lesions suspected of having breast cancer underwent fluorine-18 fluorodeoxyglucose PET for preoperative staging. After the whole-body image was acquired, prone breast PET imaging was performed. The findings from both images were compared with the histopathologic results. Sensitivity, specificity, positive predictive value, negative predictive value (NPV), and accuracy were used to compare the diagnostic accuracy of prone breast PET images with that of whole-body PET images.
  
  
  RESULTS
  Sensitivity, specificity, positive predictive value, NPV, and accuracy of whole-body PET images were 83, 50, 97, 17, and 80%, and of prone breast PET images they were 95, 50, 96, 43, and 93%. Ten of 114 breast cancerous lesions (8.8%) were detected on prone breast PET images alone. Statistical difference was found between the sensitivity, accuracy, and NPV of prone breast PET images and those of whole-body PET images (P<0.0001 for sensitivity and accuracy and P<0.0009 for NPV).
  
  
  CONCLUSIONS
  Our data about the 122 lesions, suspected of breast cancer, with regard to the usefulness of prone breast PET imaging indicate that prone breast PET images are effective in detecting breast cancer.
authors.affiliation: Department of Radiology, Division of Nuclear Medicine, PET center, Kurume University Hospital, Kurume, Fukuoka, Japan. hayato@med.kurume-u.ac.jp
authors.forename: Hayato
authors.initials: H
authors.lastname: Kaida
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Ishibashi
authors.forename: Teruhiko
authors.initials: T
authors.lastname: Fuji
authors.forename: Seiji
authors.initials: S
authors.lastname: Kurata
authors.forename: Masafumi
authors.initials: M
authors.lastname: Uchida
authors.forename: Kenkichi
authors.initials: K
authors.lastname: Baba
authors.forename: Teruo
authors.initials: T
authors.lastname: Miyagawa
authors.forename: Hiroko
authors.initials: H
authors.lastname: Kaibara
authors.forename: Seiji
authors.initials: S
authors.lastname: Kawamura
authors.forename: Etsuyo
authors.initials: E
authors.lastname: Ogo
authors.forename: Naofumi
authors.initials: N
authors.lastname: Hayabuchi