title: Clinical evaluation of JCGC and TNM staging on multidetector-row computed tomography in preoperative nodal staging of gastric cancer.
abstract: OBJECTIVE
  Multidetector row computed tomography (MDCT) has emerged as a new diagnostic technology in various cancers. The aim was to evaluate its clinical compatibility with the 13th Japanese Classification of Gastric Carcinoma (JCGC), the 6th TNM and the new 14th JCGC/ 7th TNM systems in preoperative nodal staging (N-stage) of gastric cancer.
  
  
  METHODS
  Between January 2005 and December 2007, 92 consecutive patients with gastric cancer underwent preoperative MDCT at a slice thickness of 1.0 mm.
  
  
  RESULTS
  The 13th JCGC N-stage on MDCT demonstrated the potential correlation with pathological findings (p=0.057). However, preoperative 6th TNM and the new 14th JCGC/7th TNM N-stage on MDCT from N1 to N3 did not significant correlate with pathological findings (p=0.979, 0.847) because the number of metastatic lymph nodes detected preoperatively on MDCT was significantly smaller than that detected on pathological diagnosis (p<0.0001).
  
  
  CONCLUSIONS
  Nodal staging in the 13th JCGC staging system correlates with histological examination better than the 6th TNM and 14th JCGC/7th TNM staging systems. The optimal preoperative nodal staging using the current 14th JCGC/7th TNM staging system on MDCT needs further investigation.
authors.affiliation: Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Kawaguchi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Ichikawa
authors.forename: Shuhei
authors.initials: S
authors.lastname: Komatsu
authors.forename: Kazuma
authors.initials: K
authors.lastname: Okamoto
authors.forename: Yasutoshi
authors.initials: Y
authors.lastname: Murayama
authors.forename: Atsushi
authors.initials: A
authors.lastname: Shiozaki
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kuriu
authors.forename: Hisashi
authors.initials: H
authors.lastname: Ikoma
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Nakanishi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Toshiya
authors.initials: T
authors.lastname: Ochiai
authors.forename: Yukihito
authors.initials: Y
authors.lastname: Kokuba
authors.forename: Teruhisa
authors.initials: T
authors.lastname: Sonoyama
authors.forename: Tsunehiko
authors.initials: T
authors.lastname: Nishimura
authors.forename: Eigo
authors.initials: E
authors.lastname: Otsuji
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011300:Preoperative Care; D013274:Stomach Neoplasms / Q000145:classification / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods*