title: Correlation of three-dimensional tumor volumetry with cervical cancer prognostic parameters.
abstract: OBJECTIVE
  Estimation of tumor size by a single diameter is used in the current Federal International Gynecology Oncology (FIGO) cervical cancer staging system. However, the role of three-dimensional volumetry is rarely mentioned. In this study, three kinds of tumor volume estimations were performed and the relationship of these volume estimations among associated cervical cancer prognostic parameters were evaluated.
  
  
  METHODS
  Thirty patients with newly diagnosed cervical cancer at Taipei Veterans General Hospital were enrolled in the study. Final pathology and associated parametric information was obtained by chart review. The original magnetic resonance (MR) image was reappraised by an experienced radiologist and the tumor volume was estimated using either three axial measurements or the longest axial measurement. The corresponding three-dimensional (3-D) volume was calculated by the integration of lesion areas in different images using volumetric software developed by engineers at National Central University, Taiwan. All data were analyzed separately for correlation with clinical staging, histological differentiation, pelvic lymph node metastasis and survival status.
  
  
  RESULTS
  A statistically significant difference in tumor volume estimates was found between 3-D-integration and one-dimensional estimates among tumors with lymph nodes metastasis, cell differentiation and parametrial involvement.
  
  
  CONCLUSIONS
  This study found that the parameters of lymph node metastasis, parametrial involvement and tumor differentiation are volume-dependent. 3D-tumor volumetry showed superior discrimination of these parameters compared to current single diameter evaluation suggesting its potential as a rapid method for initial prediction of prognostic factors in cervical cancer.
authors.affiliation: Department of Obstetrics and Gynecology, Taipei Veterans General Hospital and National Yang-Ming University School of Medicine, Taiwan, ROC.
authors.forename: A C Y
authors.initials: AC
authors.lastname: Chen
authors.forename: W H
authors.initials: WH
authors.lastname: Sung
authors.forename: P H
authors.initials: PH
authors.lastname: Wang
authors.forename: M H
authors.initials: MH
authors.lastname: Sheu
authors.forename: J L
authors.initials: JL
authors.lastname: Doong
authors.forename: C C
authors.initials: CC
authors.lastname: Yuan
mesh_terms: D000328:Adult; D000368:Aged; D001707:Biopsy, Needle; D002294:Carcinoma, Squamous Cell / Q000401:mortality* / Q000473:pathology* / Q000628:therapy; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods*; D011237:Predictive Value of Tests; D011336:Probability; D011379:Prognosis; D012042:Registries; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D016019:Survival Analysis; D013624:Taiwan; D002583:Uterine Cervical Neoplasms / Q000401:mortality* / Q000473:pathology* / Q000628:therapy