title: [Diffusion-weighted MR imaging for postoperative nodal recurrence of esophageal squamous cell cancer in comparison with FDG-PET].
abstract: We evaluated the power of DWIBS in patients with postoperative lymph node recurrence of esophageal cancer and compared with FDG-PET findings. Forty-seven suspected lesions by MDCT were enrolled. No significant difference between DWIBS and PET was observed in sensitivity (95% vs 97%), PPV (83% vs 90%) and overall accuracy rate (81% vs 87%). The ADCs (x10(-3) mm2/s) of recurrent nodes, primary cancer and normal esophagus were 1.124, 1.058 and 2.079, respectively. ADCs of recurrent nodes were significantly lower than those of normal esophagus (p<0.0001). The cut-off ADC line of 1.5 revealed 100% overall accuracy for separating the recurrent lesion from normal esophagus. Noninvasive DWIBS may become a valid modality to discriminate nodal recurrence of esophageal cancer by no means inferior to PET.
authors.affiliation: Department of Frontier Surgery, Graduate School of Medicine, Chiba University.
authors.forename: Kiyohiko
authors.initials: K
authors.lastname: Shuto
authors.forename: Hiroshige
authors.initials: H
authors.lastname: Saito
authors.forename: Gaku
authors.initials: G
authors.lastname: Ohira
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Natsume
authors.forename: Tsuguaki
authors.initials: T
authors.lastname: Kono
authors.forename: Takayuki
authors.initials: T
authors.lastname: Tohma
authors.forename: Asami
authors.initials: A
authors.lastname: Sato
authors.forename: Takumi
authors.initials: T
authors.lastname: Ota
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Akutsu
authors.forename: Tomoyoshi
authors.initials: T
authors.lastname: Aoyagi
authors.forename: Hisahiro
authors.initials: H
authors.lastname: Matsubara
mesh_terms: D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods; D004938:Esophageal Neoplasms / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis / Q000175:diagnosis*; D009364:Neoplasm Recurrence, Local; D049268:Positron-Emission Tomography; D012680:Sensitivity and Specificity