PMID- 31559845
OWN - NLM
STAT- MEDLINE
DCOM- 20200224
LR  - 20220412
IS  - 0250-832X (Print)
IS  - 1476-542X (Electronic)
IS  - 0250-832X (Linking)
VI  - 49
IP  - 3
DP  - 2020 Mar
TI  - Selection and application of coils in temporomandibular joint MRI.
PG  - 20190002
LID - 10.1259/dmfr.20190002 [doi]
LID - 20190002
AB  - OBJECTIVE: To compare and evaluate the signal-to-noise ratio (SNR) and the 
      contrast-to-noise ratio (CNR) values between a 15-channel phased array head coil 
      and 6-channel dS Flex M surface coil in the MRI of temporomandibular joint. 
      METHODS: 300 patients were randomly assigned to two groups: 150 patients were 
      examined by using a 15-channel phased array head coil and the other 150 patients 
      were scanned by using a 6-channel dS Flex M surface coil. All of the data were 
      set in the same 6 regions of interest including the temporal lobe, condyle neck, 
      lateral pterygoid muscle, parotid gland, the adipose area and an area of the 
      background noise）. SNR and CNR values were measured respectively. RESULTS: The 
      numerical variation law of SNR and CNR values measured in regionsof interest of 
      each group was similar, although different coils were used. There were 
      statistically significant differences of SNR values in all of the oblique 
      sagittal (OSag) proton density-weighted imaging, the part of OSag T (2) weighted 
      image (T (2)WI) except for SNR(4) and SNR(5). and oblique coronal (OCor) T (2)WI 
      sequence except for SNR(2). On the contrary, SNR(4) and SNR(5) values in the OCor 
      T (2)WI and SNR(5) values in OSag T (2)WI sequences by using the surface coil 
      were higher than those by using the head coil. There were no statistically 
      significant intergroup differences of CNR values in OSag proton density-weighted 
      imaging sequence except CNR(1) and in OSag T (2)WI sequence except CNR(5). But, 
      statistically significant differences of all the values in the OCor T (2)WI 
      sequence except for CNR(1) were observed. CONCLUSION: Both the phased array head 
      coil and dS Flex M surface coil can be used for temporomandibular joint MRI.
FAU - Sun, Qi
AU  - Sun Q
AD  - Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong 
      University School of Medicine, Shanghai, China.
FAU - Dong, Min-Jun
AU  - Dong MJ
AD  - Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong 
      University School of Medicine, Shanghai, China.
FAU - Tao, Xiao-Feng
AU  - Tao XF
AD  - Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong 
      University School of Medicine, Shanghai, China.
FAU - Jiang, Meng-da
AU  - Jiang MD
AD  - Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong 
      University School of Medicine, Shanghai, China.
FAU - Yang, Chi
AU  - Yang C
AD  - Department of Oral Surgery, Ninth People's Hospital, Shanghai Key Lab of 
      Stomatology, Shanghai, China.
LA  - eng
PT  - Journal Article
DEP - 20190927
PL  - England
TA  - Dentomaxillofac Radiol
JT  - Dento maxillo facial radiology
JID - 7609576
MH  - Humans
MH  - *Magnetic Resonance Imaging
MH  - Neck
MH  - Pterygoid Muscles
MH  - Signal-To-Noise Ratio
MH  - *Temporomandibular Joint/diagnostic imaging
PMC - PMC7068082
OTO - NOTNLM
OT  - MRI
OT  - coil
OT  - contrast-to-noise ratio
OT  - signal-to-noise ratio
OT  - temporomandibular joint
EDAT- 2019/09/29 06:00
MHDA- 2020/02/25 06:00
PMCR- 2021/03/01
CRDT- 2019/09/28 06:00
PHST- 2019/09/29 06:00 [pubmed]
PHST- 2020/02/25 06:00 [medline]
PHST- 2019/09/28 06:00 [entrez]
PHST- 2021/03/01 00:00 [pmc-release]
AID - 10.1259/dmfr.20190002 [doi]
PST - ppublish
SO  - Dentomaxillofac Radiol. 2020 Mar;49(3):20190002. doi: 10.1259/dmfr.20190002. Epub 
      2019 Sep 27.