title: Quantified application of MRI for diagnosis of head and neck tumors.
abstract: We evaluated T/M ratios and T2 values of 6 malignant lymphomas and 8 squamous cell carcinomas in the head and neck in order to differentiate these two entities. T/M ratios were calculated by dividing intensity of tumor by that of muscle in same slice images. T2 values were calculated from T2-weighted images and proton-weighted images. Statistical difference of T/M ratios was found between malignant lymphomas and squamous cell carcinomas, but no difference of T2 values was seen between two groups. T/M ratio was considered to be a useful and quantified index for evaluation of head and neck tumor.
authors.affiliation: Department of Radiology, School of Medicine, University of Tokushima, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Hori
authors.forename: M
authors.initials: M
authors.lastname: Harada
authors.forename: S
authors.initials: S
authors.lastname: Ueno
authors.forename: I
authors.initials: I
authors.lastname: Kasem
authors.forename: K
authors.initials: K
authors.lastname: Kashihara
authors.forename: S
authors.initials: S
authors.lastname: Yoshida
authors.forename: H
authors.initials: H
authors.lastname: Nishitani
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D006258:Head and Neck Neoplasms / Q000175:diagnosis*; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*