The added value of pretreatment DW MRI in characterization of salivary glands pathologies.
OBJECTIVE
To evaluate the added value of diffusion weighted magnetic resonance imaging (DW-MRI) in characterization of salivary gland lesions.


METHODS
A prospective study was carried out between January 2013, and March 2015.


METHODS
The study included 46 patients. The consultant radiologist, who reviewed the scans to comment on the apparent diffusion coefficient (ADC) value and ADC histogram was blind to the suspected pathology. Radiological findings were then compared to clinical and histological findings.


RESULTS
The diagnostic performance of DW-MRI for identification of malignant lesions showed that the sensitivity, specificity, and positive and negative prediction value were 100%, 92%, 91.3%, and 100%, respectively.


CONCLUSIONS
The specific ability of DW-MRI to probe tissue microstructures is an interesting complement to the currently used imaging procedures in the characterization, and even grading of malignancies. ADC mapping is an easy, cost effective promising tool that has neither radiation exposure, nor amalgam artifacts and can be used in helping characterization of salivary glands lesions.


METHODS
1B.
ENT Department, Ain Shams University Hospitals. Electronic address: dr.peter.milad@gmail.com.
Peter
P
Milad
ENT Department, Ain Shams University Hospitals.
Marwa
M
Elbegiermy
ENT Department, Ain Shams University Hospitals.
Tamer
T
Shokry
ENT Department, Ain Shams University Hospitals.
Heba
H
Mahmoud
ENT Department, Ain Shams University Hospitals.
Ihab
I
Kamal
ENT Department, Ain Shams University Hospitals.
Mohamed Shehata
MS
Taha
Radiology Department, Ain Shams University Hospitals.
Nermeen
N
Keriakos
D000328:Adult; D000368:Aged; D001707:Biopsy, Needle; D015331:Cohort Studies; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care / Q000379:methods; D011446:Prospective Studies; D058996:Quality Improvement; D015203:Reproducibility of Results; D018570:Risk Assessment; D012466:Salivary Gland Diseases / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D012468:Salivary Gland Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D012469:Salivary Glands / Q000000981:diagnostic imaging / Q000473:pathology; D016896:Treatment Outcome