Jwad, S., AL Hilly, M. (2022). The Value of Diffusion-Weighted Magnetic Resonance Image in the Evaluation of Temporal Bone Cholesteatoma. Alustath, 21(1), 120-126. doi: 10.52573/ipmj.2021.174080
Sura Jwad; Mohammed AL Hilly. "The Value of Diffusion-Weighted Magnetic Resonance Image in the Evaluation of Temporal Bone Cholesteatoma". Alustath, 21, 1, 2022, 120-126. doi: 10.52573/ipmj.2021.174080
Jwad, S., AL Hilly, M. (2022). 'The Value of Diffusion-Weighted Magnetic Resonance Image in the Evaluation of Temporal Bone Cholesteatoma', Alustath, 21(1), pp. 120-126. doi: 10.52573/ipmj.2021.174080
Jwad, S., AL Hilly, M. The Value of Diffusion-Weighted Magnetic Resonance Image in the Evaluation of Temporal Bone Cholesteatoma. Alustath, 2022; 21(1): 120-126. doi: 10.52573/ipmj.2021.174080

The Value of Diffusion-Weighted Magnetic Resonance Image in the Evaluation of Temporal Bone Cholesteatoma

Iraqi Postgraduate Medical Journal
Article 17, Volume 21, Issue 1, January 2022, Pages 120-126    PDF (271 K)
DOI: 10.52573/ipmj.2021.174080
Authors
Sura Jwad1; Mohammed AL Hilly2
1Welfare Teaching Hospital, Medical City, Baghdad, Iraq
2Al Shaheed Ghazi AL Hairri Teaching Hospital, Medical City, Baghdad, Iraq
Abstract
BACK GROUND :
Cholesteatoma is non-neoplastic destructive lesion .MRI including diffusion weighted imaging (DWI) is helpful, since high content of keratin is associated with restricted diffusion.
AIM OF STUDY:
To determine the value of DWMRI and apparent diffusion coefficient (ADC) value in diagnosis of temporal bone cholesteatoma .
PATIENTS AND METHOD :
A prospective study conducted 33 patients with clinical suspicious of cholestatoma  using 1.5tesla  MRI scanner ,DWI with bvalue 1000 sec/ mm2.ADC was reconstructed and mean value measured  in mm2/sec for each lesion .Enhancing image obtained  after intravenous contrast administration  with early and delay images in suspected recurrent cases .
RESULT:
DWI  accurately detect 22 of 25 cholesteatoma lesions (sensitivity = 88% and specificity = 100%).Positive predictive value and negative predictive value were 100%  and76.9% respectively with accuracy rate 91.4%.  ADC value revealed  (0.469 x10-3  to 0.823 x10-3 mm2/sec) for restricted lesions  with  mean value ( 0.653 x10-3 ± 0.09092 SD mm2 /sec)which is significantly difference from non restricted lesions(P value  less than 0.001) .T1W  post contrast  images also give high accuracy  in diagnosis  of cholesteatoma 23 from 25 cases (sensitivity =92.59 %, specificity = 100).
CONCLUSION:
MRDWI give high accuracy in detection of cholestatoma in patient with chronic ear discharge.
 
Keywords
cholesteatoma; Magnetic resonance image; Diffusion weighted image; Temporal bone
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