English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Multi-slice real-time MRI of temporomandibular joint dynamics.

Krohn, S., Joseph, A. A., Voit, D., Michaelis, T., Merboldt, K. D., Buergers, R., et al. (2019). Multi-slice real-time MRI of temporomandibular joint dynamics. Dentomaxillofacial Radiology, 48(1): 20180162. doi:10.1259/dmfr.20180162.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0001-DB90-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-7AC5-6
Genre: Journal Article

Files

show Files
hide Files
:
2628059.pdf (Publisher version), 2MB
 
File Permalink:
-
Name:
2628059.pdf
Description:
-
Visibility:
Restricted ( Max Planck Society (every institute); )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Krohn, S., Author
Joseph, A. A.1, Author              
Voit, D.1, Author              
Michaelis, T.1, Author              
Merboldt, K. D.1, Author              
Buergers, R., Author
Frahm, J.1, Author              
Affiliations:
1Biomedical NMR Research GmbH, MPI for biophysical chemistry, Max Planck Society, ou_578634              

Content

show
hide
Free keywords: real-time MRI; multi-slice acquisitions; joint movements; temporomandibular joint
 Abstract: OBJECTIVES: The purpose of this work was to improve the clinical versatility of high-speed real-time MRI studies of temporomandibular joint (TMJ) dynamics by simultaneous recordings of multiple MRI movies in different sections. METHODS: Real-time MRI at 3 T was realized using highly undersampled radial FLASH acquisitions and image reconstruction by regularized nonlinear inversion (NLINV). Multi-slice real-time MRI of two, three or four slices at 0.75 mm resolution and 6 to 8 mm thickness was accomplished at 50.0 ms, 33.3 ms or 25.5 ms temporal resolution, respectively, yielding simultaneous movies at 2 × 10, 3 × 10 or 4 × 10 frames per second in a frame-interleaved acquisition mode. Real-time MRI movies were evaluated by three blinded raters for visibility of the anterior and posterior border of disc, shape of the disk body and condyle head as well as movement of the disc and condyle (1 = excellent, 5 = no visibility). RESULTS: Effective delineation of the disk atop the mandibular condyle was achieved by T1-weighted images with opposed-phase water-fat contrast. Compared to 8 mm sections, multi-slice recordings with 6 mm thickness provided sharper delineation of relevant structures as confirmed by inter-rater evaluation. Respective dual-slice and triple-slice recordings of a single TMJ as well as dual-slice recordings of both joints (one slice per TMJ) received the highest visibility ratings of ≤ 2 corresponding to high confidence in diagnostic content. CONCLUSIONS: The improved access to TMJ dynamics by multi-slice real-time MRI will contribute to more effective treatment of temporomandibular disorders.

Details

show
hide
Language(s): eng - English
 Dates: 2018-07-202019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1259/dmfr.20180162
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Dentomaxillofacial Radiology
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: 6 Volume / Issue: 48 (1) Sequence Number: 20180162 Start / End Page: - Identifier: -