DIAGNOSTIC CAPABILITIES OF COMPUTER ASSISTED TOMOGRAPHY AND MAGNETIC RESONANCE TOMOGRAPHY IN PATIENTS WITH THE SECONDARY MIDDLE EAR CHOLESTEATOMA

2017 ◽  
Vol 88 (3) ◽  
pp. 46-53
Author(s):  
S. N. Il’in ◽  
◽  
I. A. Anikin ◽  
O. V. Nozdrevatykh ◽  
S. Kh. Tsutsieva ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Middle Ear ◽  
Magnetic Resonance Tomography ◽  
Computer Assisted ◽  
Computer Assisted Tomography ◽  
Middle Ear Cholesteatoma ◽  
Diagnostic Capabilities

scholarly journals Multimodal brain magnetic resonance imaging and perfusion computer assisted tomography scanning in evaluation of cerebroprotective efficacy of antihypertensive therapy

2009 ◽  
Vol 15 (3) ◽  
pp. 280-284
Author(s):  
E. V. Fedorenko ◽  
H. -J. Wittsack ◽  
A. M. Russina ◽  
N. L. Afanasieva ◽  
V. M. Gulyaev ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Pressure ◽  
Magnetic Resonance ◽  
Systolic Blood Pressure ◽  
Antihypertensive Therapy ◽  
Computer Assisted ◽  
Diagnostic Study ◽  
Resonance Imaging ◽  
Computer Assisted Tomography ◽  
The Brain

A multimodal diagnostic study of the brain was carried out in 22 patients with arterial hypertension (mean systolic blood pressure 152,8 ± 7,6 mm Hg, mean diastolic blood pressure 94,6 ± 5,2 mm Hg), without cardiovascular events in anamnesis. Magnetic resonance imaging (MRI) imaging and dynamic contrast-enhanced perfusion X-ray computer assisted tomography scan (DynCT) of the brain were performed at admission and after six months of antihypertensive treatment. Based on the MRI and DynCT visual data the extent of periventricular oedema, dimensions of liquor system and regional cerebral blood flow (as ml/min/100 g tissue) were quantified. The quantitative MRI and DynCT indices were analyzed regarding the decrease of blood pressure. Significant decrease of periventricular oedema and improvement in perfusion of basal ganglii area were observed in patients demonstrated decrease in systolic blood pressure for 12-28 mm Hg. The degree of the blood pressure decrease was not associated with the significant MRI and DynCT data improvement. Hencefore, we conclude that the brain MRI and perfusion DynCT data can be employed for evaluation of cerebroprotective effects of antihypertensive therapy.

Computer-Assisted Tomography and Magnetic Resonance Imaging

Root Methods ◽  
2000 ◽  
pp. 343-363 ◽  
Author(s):  
S. Asseng ◽  
L. A. G. Aylmore ◽  
J. S. MacFall ◽  
J. W. Hopmans ◽  
P. J. Gregory
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computer Assisted ◽  
Resonance Imaging ◽  
Computer Assisted Tomography

Efficacy of diffusion-weighted magnetic resonance imaging in the diagnosis of middle ear cholesteatoma

2011 ◽  
Vol 38 (3) ◽  
pp. 329-334 ◽  
Author(s):  
Akira Ganaha ◽  
Shigeto Outa ◽  
Asanori Kyuuna ◽  
Sen Matayoshi ◽  
Ayano Yonaha ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Middle Ear ◽  
Resonance Imaging ◽  
Diffusion Weighted ◽  
Middle Ear Cholesteatoma ◽  
Weighted Magnetic Resonance Imaging

Non echo planar, diffusion-weighted magnetic resonance imaging (periodically rotated overlapping parallel lines with enhanced reconstruction sequence) compared with echo planar imaging for the detection of middle-ear cholesteatoma

2010 ◽  
Vol 125 (4) ◽  
pp. 376-380 ◽  
Author(s):  
A V Kasbekar ◽  
D J Scoffings ◽  
B Kenway ◽  
J Cross ◽  
N Donnelly ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Middle Ear ◽  
Echo Planar Imaging ◽  
Combined Approach ◽  
Resonance Imaging ◽  
Planar Imaging ◽  
Parallel Lines ◽  
Middle Ear Cholesteatoma ◽  
Echo Planar

AbstractObjectives:We evaluated use of the periodically rotated overlapping parallel lines with enhanced reconstruction diffusion-weighted imaging sequence, compared with conventional echo planar magnetic resonance imaging, in the detection of middle-ear cholesteatoma.Material and methods:Sixteen patients awaiting second-stage combined approach tympanoplasty and three patients awaiting first-stage combined approach tympanoplasty underwent magnetic resonance imaging with both (1) the periodically rotated overlapping parallel lines with enhanced reconstruction sequence (i.e. non echo planar imaging) and (2) the array spatial sensitivity encoding technique sequence (i.e. echo planar imaging). Two neuroradiologists independently evaluated the images produced by both sequences. Radiology findings were correlated with surgical findings.Results and analysis:Seven cholesteatomas were found at surgery. Neither of the assessed imaging sequences were able to detect cholesteatoma of less than 4 mm. Rates for sensitivity, specificity, and positive and negative predictive values are presented.Conclusion:Decisions on whether or not to operate for cholesteatoma cannot be made based on the two imaging sequences assessed, as evaluated in this study. Other contributing factors are discussed, such as the radiological learning curve and technical limitations of the magnetic resonance imaging equipment.

Sign in / Sign up

Export Citation Format

Share Document