Assessment of ameloblastomas using MRI and dynamic contrast-enhanced MRI

Jun-Ichi Asaumi, Miki Hisatomi, Yoshinobu Yanagi, Hidenobu Matsuzaki, Suk Choi Yong, Noriko Kawai, Hironobu Konouchi, Kanji Kishi

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We retrospectively evaluated magnetic resonance images (MRI) and dynamic contrast-enhanced MRI (DCE-MRI) of ameloblastomas. MRI and DCE-MRI were performed for 10 ameloblastomas. We obtained the following results from the MRI and DCE-MRI. (a) Ameloblastomas can be divided into solid and cystic portions on the basis of MR signal intensities. (b) Ameloblastomas show a predilection for intermediate signal intensity on T1WI, high signal intensity on T2WI, and well enhancement in the solid portion; they also show a homogeneous intermediate signal intensity on T1WI and homogeneous high signal intensity on T2WI, and no enhancement in the cystic portion. (c) The mural nodule or thick wall can be detected in ameloblastomas lesions. (d) CI curves of ameloblastomas show two patterns: the first pattern increases, reaches a plateau at 100-300 s, then sustains the plateau or decreases gradually to 600-900 s, while the other increases relatively rapidly, reaches a plateau at 90-120 s, then decreases relatively rapidly to 300 s, and decreases gradually thereafter. There was no difference in the CI curve patterns among primary and recurrent cases, a case with glandular odontogenic tumor in ameloblastoma or among histopathological types such as plexiform, follicular, mixed, desmoplastic, and unicystic type.

Original languageEnglish
Pages (from-to)25-30
Number of pages6
JournalEuropean Journal of Radiology
Volume56
Issue number1
DOIs
Publication statusPublished - Oct 2005

Fingerprint

Ameloblastoma
Magnetic Resonance Spectroscopy
Odontogenic Tumors

Keywords

  • Benign tumor
  • Dynamic MRI
  • Histopathological type
  • MRI
  • Odontogenic

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Assessment of ameloblastomas using MRI and dynamic contrast-enhanced MRI. / Asaumi, Jun-Ichi; Hisatomi, Miki; Yanagi, Yoshinobu; Matsuzaki, Hidenobu; Yong, Suk Choi; Kawai, Noriko; Konouchi, Hironobu; Kishi, Kanji.

In: European Journal of Radiology, Vol. 56, No. 1, 10.2005, p. 25-30.

Research output: Contribution to journalArticle

@article{512c901531764c9796f405265ca01d15,
title = "Assessment of ameloblastomas using MRI and dynamic contrast-enhanced MRI",
abstract = "We retrospectively evaluated magnetic resonance images (MRI) and dynamic contrast-enhanced MRI (DCE-MRI) of ameloblastomas. MRI and DCE-MRI were performed for 10 ameloblastomas. We obtained the following results from the MRI and DCE-MRI. (a) Ameloblastomas can be divided into solid and cystic portions on the basis of MR signal intensities. (b) Ameloblastomas show a predilection for intermediate signal intensity on T1WI, high signal intensity on T2WI, and well enhancement in the solid portion; they also show a homogeneous intermediate signal intensity on T1WI and homogeneous high signal intensity on T2WI, and no enhancement in the cystic portion. (c) The mural nodule or thick wall can be detected in ameloblastomas lesions. (d) CI curves of ameloblastomas show two patterns: the first pattern increases, reaches a plateau at 100-300 s, then sustains the plateau or decreases gradually to 600-900 s, while the other increases relatively rapidly, reaches a plateau at 90-120 s, then decreases relatively rapidly to 300 s, and decreases gradually thereafter. There was no difference in the CI curve patterns among primary and recurrent cases, a case with glandular odontogenic tumor in ameloblastoma or among histopathological types such as plexiform, follicular, mixed, desmoplastic, and unicystic type.",
keywords = "Benign tumor, Dynamic MRI, Histopathological type, MRI, Odontogenic",
author = "Jun-Ichi Asaumi and Miki Hisatomi and Yoshinobu Yanagi and Hidenobu Matsuzaki and Yong, {Suk Choi} and Noriko Kawai and Hironobu Konouchi and Kanji Kishi",
year = "2005",
month = "10",
doi = "10.1016/j.ejrad.2005.01.006",
language = "English",
volume = "56",
pages = "25--30",
journal = "Journal of Medical Imaging",
issn = "0720-048X",
publisher = "Elsevier Ireland Ltd",
number = "1",

}

TY - JOUR

T1 - Assessment of ameloblastomas using MRI and dynamic contrast-enhanced MRI

AU - Asaumi, Jun-Ichi

AU - Hisatomi, Miki

AU - Yanagi, Yoshinobu

AU - Matsuzaki, Hidenobu

AU - Yong, Suk Choi

AU - Kawai, Noriko

AU - Konouchi, Hironobu

AU - Kishi, Kanji

PY - 2005/10

Y1 - 2005/10

N2 - We retrospectively evaluated magnetic resonance images (MRI) and dynamic contrast-enhanced MRI (DCE-MRI) of ameloblastomas. MRI and DCE-MRI were performed for 10 ameloblastomas. We obtained the following results from the MRI and DCE-MRI. (a) Ameloblastomas can be divided into solid and cystic portions on the basis of MR signal intensities. (b) Ameloblastomas show a predilection for intermediate signal intensity on T1WI, high signal intensity on T2WI, and well enhancement in the solid portion; they also show a homogeneous intermediate signal intensity on T1WI and homogeneous high signal intensity on T2WI, and no enhancement in the cystic portion. (c) The mural nodule or thick wall can be detected in ameloblastomas lesions. (d) CI curves of ameloblastomas show two patterns: the first pattern increases, reaches a plateau at 100-300 s, then sustains the plateau or decreases gradually to 600-900 s, while the other increases relatively rapidly, reaches a plateau at 90-120 s, then decreases relatively rapidly to 300 s, and decreases gradually thereafter. There was no difference in the CI curve patterns among primary and recurrent cases, a case with glandular odontogenic tumor in ameloblastoma or among histopathological types such as plexiform, follicular, mixed, desmoplastic, and unicystic type.

AB - We retrospectively evaluated magnetic resonance images (MRI) and dynamic contrast-enhanced MRI (DCE-MRI) of ameloblastomas. MRI and DCE-MRI were performed for 10 ameloblastomas. We obtained the following results from the MRI and DCE-MRI. (a) Ameloblastomas can be divided into solid and cystic portions on the basis of MR signal intensities. (b) Ameloblastomas show a predilection for intermediate signal intensity on T1WI, high signal intensity on T2WI, and well enhancement in the solid portion; they also show a homogeneous intermediate signal intensity on T1WI and homogeneous high signal intensity on T2WI, and no enhancement in the cystic portion. (c) The mural nodule or thick wall can be detected in ameloblastomas lesions. (d) CI curves of ameloblastomas show two patterns: the first pattern increases, reaches a plateau at 100-300 s, then sustains the plateau or decreases gradually to 600-900 s, while the other increases relatively rapidly, reaches a plateau at 90-120 s, then decreases relatively rapidly to 300 s, and decreases gradually thereafter. There was no difference in the CI curve patterns among primary and recurrent cases, a case with glandular odontogenic tumor in ameloblastoma or among histopathological types such as plexiform, follicular, mixed, desmoplastic, and unicystic type.

KW - Benign tumor

KW - Dynamic MRI

KW - Histopathological type

KW - MRI

KW - Odontogenic

UR - http://www.scopus.com/inward/record.url?scp=24944525810&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24944525810&partnerID=8YFLogxK

U2 - 10.1016/j.ejrad.2005.01.006

DO - 10.1016/j.ejrad.2005.01.006

M3 - Article

C2 - 16168260

AN - SCOPUS:24944525810

VL - 56

SP - 25

EP - 30

JO - Journal of Medical Imaging

JF - Journal of Medical Imaging

SN - 0720-048X

IS - 1

ER -