title: Detection of lymph nodes in pelvic malignancies with Computed Tomography and Magnetic Resonance Imaging.
abstract: Thirty patients with prostate or bladder cancer underwent CT and MRI for nodal staging. CT detected 189 nodes, and MRI detected 271 nodes. This difference was statistically significant in the external iliac (CT/MRI=73/87 nodes), obturator (CT/MRI=48/75 nodes), and internal iliac (CT/MRI=24/46 nodes) nodal chains. Based on size, the number of nodes detected by CT and MRI were as follows: 1-5 mm, CT/MRI=91/166; 6-10 mm, CT/MRI=91/98; >10 mm, CT/MRI=7/7 nodes. MRI detected significantly more lymph nodes in the size range of 1-5 mm.
authors.affiliation: Center for Molecular Imaging Research, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.
authors.forename: Anuradha
authors.initials: A
authors.lastname: Saokar
authors.forename: Tina
authors.initials: T
authors.lastname: Islam
authors.forename: Marion
authors.initials: M
authors.lastname: Jantsch
authors.forename: Mansi A
authors.initials: MA
authors.lastname: Saksena
authors.forename: Peter F
authors.initials: PF
authors.lastname: Hahn
authors.forename: Mukesh G
authors.initials: MG
authors.lastname: Harisinghani
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003287:Contrast Media; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008198:Lymph Nodes / Q000000981:diagnostic imaging* / Q000473:pathology*; D008207:Lymphatic Metastasis / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011471:Prostatic Neoplasms / Q000473:pathology*; D015203:Reproducibility of Results; D012189:Retrospective Studies; D036542:Tomography, Spiral Computed / Q000379:methods*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA