Abstract
To evaluate the diagnostic value of dynamic contrast-enhanced MRI (DCE-MRI) for differentiating between benign and malignant tumors in the palate. 26 patients with submucosal palatal tumors were preoperatively examined using DCE-MRI. Their maximum contrast index (CImax), time of CImax (Tmax), and washout ratios (WR300 and WR600) were determined from contrast index curves. The submucosal palatal tumors were divided into two groups according to their Tmax values: the early enhancement group (Tmax<300 s) consisted of 9 malignant tumors and 6 benign tumors, while the late enhancement group (Tmax≥300 s) included one malignant tumor and 10 benign tumors. We compared the following DCE-MRI parameters between the benign and malignant tumors: CImax and Tmax in all cases and CImax, Tmax, and the washout ratios in the early enhancement group. In addition, we performed a regression analysis of the relationships between tumor size and DCE-MRI parameters; i.e., CImax, Tmax, and washout ratios, among the malignant salivary gland tumors and pleomorphic adenomas. In all cases and the early enhancement group, significant differences in Tmax were detected between the benign and malignant tumors (P<0.001 and P<0.05, respectively), and the optimal T...Continue Reading
References
Sep 1, 1975·International Journal of Oral Surgery·M SugimuraK Kawakatsu
Apr 1, 1994·The British Journal of Radiology·Y TsushimaK Endo
Dec 1, 1993·Radiology·S TakashimaT Kobayashi
Sep 1, 1996·Radiology·L D BuaduS Ohno
Jun 18, 2002·European Journal of Radiology·Jun-ichi AsaumiKanji Kishi
Feb 4, 2003·Radiology·Hidetake YabuuchiMitsuru Koga
Apr 6, 2004·Oral Oncology·Jun-Ichi AsaumiKanji Kishi
Apr 20, 2004·Journal of Computer Assisted Tomography·Ken MotooriHisao Ito
Dec 13, 2005·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Fumiaki UedaMitsuru Furukawa
May 28, 2008·Journal of Magnetic Resonance Imaging : JMRI·Sato EidaTakashi Nakamura
Oct 23, 2008·Radiology·Hidetake YabuuchiHiroshi Honda
Jun 15, 2010·Journal of Neuroradiology. Journal De Neuroradiologie·J Lechner GoyaultF Veillon
Aug 24, 2010·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Yoshinobu YanagiHitoshi Nagatsuka
Aug 6, 2011·European Radiology·Mayumi TakeuchiMasafumi Harada
Citations
Apr 6, 2013·Head & Neck·Vincent Vander PoortenAlfio Ferlito
Oct 3, 2015·AJNR. American Journal of Neuroradiology·S GaddikeriY Anzai
Mar 18, 2015·Clinical Imaging·Mitsutomi IshiyamaYoshimi Anzai
Mar 21, 2015·The British Journal of Radiology·P D LamT Kurabayashi
May 26, 2017·PloS One·Marcelo Aldrighi MoreiraPriscyla Waleska Simões
Apr 9, 2020·La Radiologia medica·Michele PietragallaStefano Colagrande
Dec 15, 2018·Lower Urinary Tract Symptoms·Takuya SadahiraYasutomo Nasu