Authors

Year

Country MRI Teslas

n

Odontogenic lesions assessed

Objective

Main results and conclusions

Minani, et al. 1996 [4]

Japan

0.064T

Toshiba, USA

46

Multicystic ameloblastoma

OKC

Other cysts: (radicular cyst, dentigerous cyst, simple bone cyst, dermoid cyst)

Differentiation of ameloblastomas, OKCs and other mandibular cysts using CT and MRI.

Shell-like bulgings of the bone cortex were more effectively demonstrated with conventional radiography and/or CT in six cases, and soft-tissue invasion was overestimated with MR imaging in four cases.

Hisatomi, et al. 2003 [5]

Japan

1.5T

Magnetom Vision; Siemens, Germany

27

OKC

Dentigerous cyst

Odontogenic glandular cyst

Nasopalatine duct cyst

Assessment of odontogenic epithelial lesions imaging features in MRI using SI and Gd-T1WI.

MRI features corresponded to histopathological findings. However, for the I glandular odontogenic cyst it was not possible to demonstrate the cystic characteristics MRI.

Asaumi, et al. 2005 [7]

Japan

1.5T

Magnetom vision; Siemens, Germany

10

Multicystic ameloblastoma

MR features and DCE-MRI of ameloblastomas

For the solid content, ameloblastomas presented a predilection for intermediate SI on T1WI, high signal intensity on T2WI, and enhancement in DCE images. For the cystic portion, demonstrated a homogeneous intermediate SI on T1WI and homogeneous high signal intensity on T2WI, with no enhancement.

Konouchi, et al. 2006 [8]

Japan

1.5T

Magnetom vision; Siemens, Germany

13

Unicystic, plexiform and follicular ameloblastoma

OKC

Dentigerous cyst

Evaluation of the use of CET1WI in the diagnosis of unilocular radioluscencies.

The images of unilocular radiolucent lesions were differentiated from unicystic ameloblastoma based on the imaging features provided by MRI and CE images. Thick enhancement of the wall of the lesions and the presence of small intraluminal nodules (i.e., characteristic features of unicystic ameloblastoma) were detected only by CE images

Hisatomi, et al. 2011 [9]

Japan

1.5T

Magnetom vision; Siemens, Germany

12

Unicystic and multicystic ameloblastoma

Assessment of CE-MRI and DCE_MRI of unilocular cystic-type ameloblastomas suspected of being cystic lesions due to homogeneously bright high signal intensity on T2WI.

CE-T1WI and DCE-MRI were useful in the differential diagnosis of unilocular cystic-type ameloblastomas with homogeneously bright high signal intensity on T2WI or STIR.

Srinivasan, et al. 2012 [14]

India

1.5T

Avanto; Siemens, Germany

20

Odontogenic Myxoma

OKC

Dentigerous cyst

Multicystic and unicystic ameloblastoma

To evaluate the use of DWI and ADC in the differentiation of odontogenic cysts and tumours.

Cystic areas of ameloblastoma showed free diffusion, whereas the solid areas showed restricted diffusion; OKC showed restricted diffusion. There was a significant difference between the ADC values of OKC and cystic ameloblastoma.

Kheir, et al. 2013 [15]

South Africa

T NR

10

Odontogenic Myxoma

Describe imaging features of odontogenic myxomas using distinct imaging modalities.

The use of combined of imaging modalities can accurately reveal the true margins and extent of tumors, which is useful in differentiating odontogenic myxoma from other tumors with similar presentation.

Apajalahti, et al. 2015 [23]

Finland

1.5T

Magnetom vision; Siemens, Germany

5

Ameloblastoma

Imaging features assessment.

Contrast-enhanced CT and MRI aid in distinguishing between ameloblastomas and other cystlike lesions because they allow for visualization of the mixed cystic and solid content of nonunicystic ameloblastomas.

Probst, et al. 2015 [10]

Germany

1.0T; 1,5T and 3T

Magnetom Harmony and Vision (Siemens, Germany);

Achieva 3.0T; (Philips medical systems, Germany)

20

OKC

Differentiation between OKC and other odontogenic cystic lesions using MRI.

Odontogenic cysts appeared with homogeneously high SI of cystic walls at contrast-enhanced MRI, while OKCs showed homogeneously or heterogeneously low SI after contrast enhancement.

Han, et al. 2018 [11]

China

1.5T

Signa Twin Speed system (GE Healthcare, USA)

40

Multicystic and unicystic ameloblastomas

OKC

Dentigerous cyst

Caracterization of ameloblastomas and OKCs using DWI.

DWI and ADC can be used as an adjuvant tool to differentiate OKC and unicystic ameloblastomas, although the ADC values of dentigerous cysts overlap with those of OKCs.

Juerchott, et al. 2018 [16]

Germany

NR

11

Radicular cyst

Differentiation between RC and granuloma using MRI in cases pre-apicectomy

MRI SI allowed for a differentiation between cysts and granulomas, as well as CE images.

Lizio, et al. 2018 [24]

Italy

1.5T

Signa HDxt; GE Medical System, USA

34

Radicular cyst

Effectiveness of MRI in the Differentiation of periapical lesions of endodontic origin.

A strong inter-rater reliability was observed between the two radiologists and the two pathologists. The reliability and accuracy of MRI were high, highlighting the usefulness of MRI as a diagnostic method for periapical endodontic lesions.

Ogura, et al. 2019 [12]

Japan

1.5T

Exelart Vantage, MRT; (Canon Medical Systems, Japan)

16

OKC

Dentigerous cyst

Nasopalatine duct cyst

Radicular cyst

Characterization of jaw lesions using DWI.

Mean ADC of OKC was lower than DC, nasopalatine duct cyst and simple bone cyst. ADC can be used to differentiate cystic lesions of the jaws.

Baba, et al. 2020 [13]

Japan

1.5T and 3T

Philips and Siemens

6

Desmoplastic ameloblastoma

Imaging features in MRI and CT.

All lesions showed well-defined borders. MRI should also be consulted, particularly for honeycomb-like lesions with well-defined margins, bone expansion and anterior location on radiographs or CT. Findings by MRI such as solid low-signal-intensity, hyperintense cystic foci and persistent enhancement pattern will suggest the diagnosis of desmoplastic ameloblastoma.

Vanagundi, et al. 2020 [17]

India

3T

MagnetomSkyra (Siemens, Germany)

27

OKC

Unicysticameloblatoma

Dentigerous cyst

To compare the ADC values derived from DWI with the T1 and T2 signal intensities for lesions differentiation.

SI did not significantly differ considering the three lesions. Functional DWI can be of great benefit in further characterization of these jaw lesions.

Wamasing, et al. 2021 [18]

Japan

3T

Magnetom Spectra 3T scanner (Siemens, Germany)

127

OKC

Dentigerous cyst

Unicystic ameloblastoma

To compare ADCs between ameloblastoma, OKC and dentigerous cyst.

All dentigerous cysts and 36% of OKCs had contact with an impacted tooth; ADC values were significantly different between dentigerous cysts as well as unicystic ameloblastomas and between OKCs and unicystic ameloblastomas. However, they were not significantly different between dentigerous cysts and OKCs.