Question:

The characteristics of diffusion restriction on diffusion-weighted imaging (DWI) and corresponding apparent diffusion coefficient (ADC) maps are:
1. Hypointense on DWI and hyperintense on ADC
2. Hyperintense on DWI and isointense on ADC
3. Hyperintense on DWI and hypointense on ADC
4. Hypointense on DWI and hypointense on ADC
5. Hyperintense on DWI and hyperintense on ADC





Answer:

The correct answer for the question "The characteristics of diffusion restriction on diffusion-weighted imaging (DWI) and corresponding apparent diffusion coefficient (ADC) maps are: " is:

3. Hyperintense on DWI and hypointense on ADC



Explanation
True restricted diffusion will appear as areas of hyperintensity on DWI and corresponding areas of hypointensity on the apparent diffusion coefficient (ADC) map. The ADC map is useful for ruling out hyperintensity on DWI from T2-weighting, a phenomenon known as "T2 shine through".



From the manuscript:
Neurocandidiasis: a case report and consideration of the causes of restricted diffusion
Radiology Case. 2013 May; 7(5):1-5


This article belongs to the Neuro section.




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From the manuscript

Neurocandidiasis: a case report and consideration of the causes of restricted diffusion

Free full text article: Neurocandidiasis: a case report and consideration of the causes of restricted diffusion

Abstract
Diffusion weighted magnetic resonance imaging has risen to the forefront of imaging for acute stroke. However, the differential diagnosis of restricted diffusion is wide and includes ischemia, metabolic derangements, infections, and highly-cellular masses. We present a case of central nervous system (CNS) candidiasis presenting radiographically as bilateral punctate areas of restricted magnetic resonance (MR) diffusion in the basal ganglia. This case illustrates the value of carefully considering the causes of restricted diffusion in the brain, notably to be broader than acute stroke and to include invasive fungal infections.






References



1. Sheerin F, Pretorius PM, Briley D, Meagher T. Differential diagnosis of restricted diffusion confined to the cerebral cortex. Clinical Radiology The Royal College of Radiologists; 2008Nov.1;63(11):1245-53
Get full text
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2. Stadnik TW, Demaerel P, Luypaert RR, Chaskis C, Van Rompaey KL, Michotte A. Imaging tutorial: differential diagnosis of bright lesions on diffusion-weighted MR images. Radiographics 2003Jan.;23(1):e7
Get full text
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3. Kastrup O, Wanke I, Maschke M. Neuroimaging of Infections. The Journal of the American Society for Experimental NeuroTherapeutics 2005Apr.15;2:324-32
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


4. Gaviani P, Schartz RB, Hedley-Whyte T, Ligon KL, Robicsek A, Schaefer P. Diffusion-Weighted Imaging of Fungal Cerebral Infection. American journal of Neuroradiology 2005Apr.28;26:1115-21
Get full text
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5. Mueller-Mang C, Castillo M, Mang TG, Cartes-Zumelzu F, Weber M, Thurnher MM. Fungal versus bacterial brain abscesses: is diffusion-weighted MR imaging a useful tool in the differential diagnosis? Neuroradiology. 2007 Aug.;49(8):651-7
Get full text
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6. Hegde AN, Mohan S, Lath N, Lim CCT. Differential Diagnosis for Bilateral Abnormalities of the Basal Ganglia and Thalamus. Radiographics 2011Jan.21;31(1):5-30
Get full text
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7. Sánchez-Portocarrero J, Pérez-Cecilia E, Corral O, Romero-Vivas J, Picazo JJ. The central nervous system and infection by Candida species. Diagn Microbiol
Get full text
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8. Pendlebury WW, Perl DP, Munoz DG. Multiple microabscesses in the central nervous system: a clinicopathologic study. J Neuropathol
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