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Intracranial Lesions with Low Signal Intensity on T2-weighted MR Images - Review of Pathologies.

Zimny A, Neska-Matuszewska M, Bladowska J, Sąsiadek MJ - Pol J Radiol (2015)

Bottom Line: In this article we presented intracranial pathological substances and lesions with low signal intensity on T2-weighted images.Eight groups of substances were discussed i.e. 1.Gadolinium-based contrast materials, 2. hemoglobin degradation products 3. melanin, 4. mucous- or protein-containing lesions, 5. highly cellular lesions, 6. lesions containing mineral substances such as: calcium, copper and iron, 7. turbulent and rapid blood or CSF flow 8. air-containing spaces.

View Article: PubMed Central - PubMed

Affiliation: Department of General and Interventional Radiology and Neuroradiology, Wrocław Medical University, Wrocław, Poland.

ABSTRACT
In this article we presented intracranial pathological substances and lesions with low signal intensity on T2-weighted images. Eight groups of substances were discussed i.e. 1. Gadolinium-based contrast materials, 2. hemoglobin degradation products 3. melanin, 4. mucous- or protein-containing lesions, 5. highly cellular lesions, 6. lesions containing mineral substances such as: calcium, copper and iron, 7. turbulent and rapid blood or CSF flow 8. air-containing spaces. Appropriate interpretation of signal intensity as well as analysis of lesion location and clinical symptoms enable a correct choice of a further diagnostic algorithm or, in many cases, final diagnosis based exclusively on an MRI examination.

No MeSH data available.


Related in: MedlinePlus

Diffuse axonal injury. Axial susceptibility weighted images show multiple small hypointense foci of hemorrhage within the right temporal lobe and midbrain (A), splenium of the corpus callosum (B) and right parietal lobe (C), which are usually hardly visible on other MR sequences.
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Related In: Results  -  Collection


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f8-poljradiol-80-40: Diffuse axonal injury. Axial susceptibility weighted images show multiple small hypointense foci of hemorrhage within the right temporal lobe and midbrain (A), splenium of the corpus callosum (B) and right parietal lobe (C), which are usually hardly visible on other MR sequences.

Mentions: T2* and SW images are helpful in diagnosing acute and chronic bleeding. Their susceptibility to hemosiderin is especially useful in the diagnostics of microbleeds in the course of several pathologies including diffuse axonal injury or amyloid angiopathy [2]. Microbleeds observed on T2* and SWI, may be invisible in other sequences (Figure 8).


Intracranial Lesions with Low Signal Intensity on T2-weighted MR Images - Review of Pathologies.

Zimny A, Neska-Matuszewska M, Bladowska J, Sąsiadek MJ - Pol J Radiol (2015)

Diffuse axonal injury. Axial susceptibility weighted images show multiple small hypointense foci of hemorrhage within the right temporal lobe and midbrain (A), splenium of the corpus callosum (B) and right parietal lobe (C), which are usually hardly visible on other MR sequences.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4307690&req=5

f8-poljradiol-80-40: Diffuse axonal injury. Axial susceptibility weighted images show multiple small hypointense foci of hemorrhage within the right temporal lobe and midbrain (A), splenium of the corpus callosum (B) and right parietal lobe (C), which are usually hardly visible on other MR sequences.
Mentions: T2* and SW images are helpful in diagnosing acute and chronic bleeding. Their susceptibility to hemosiderin is especially useful in the diagnostics of microbleeds in the course of several pathologies including diffuse axonal injury or amyloid angiopathy [2]. Microbleeds observed on T2* and SWI, may be invisible in other sequences (Figure 8).

Bottom Line: In this article we presented intracranial pathological substances and lesions with low signal intensity on T2-weighted images.Eight groups of substances were discussed i.e. 1.Gadolinium-based contrast materials, 2. hemoglobin degradation products 3. melanin, 4. mucous- or protein-containing lesions, 5. highly cellular lesions, 6. lesions containing mineral substances such as: calcium, copper and iron, 7. turbulent and rapid blood or CSF flow 8. air-containing spaces.

View Article: PubMed Central - PubMed

Affiliation: Department of General and Interventional Radiology and Neuroradiology, Wrocław Medical University, Wrocław, Poland.

ABSTRACT
In this article we presented intracranial pathological substances and lesions with low signal intensity on T2-weighted images. Eight groups of substances were discussed i.e. 1. Gadolinium-based contrast materials, 2. hemoglobin degradation products 3. melanin, 4. mucous- or protein-containing lesions, 5. highly cellular lesions, 6. lesions containing mineral substances such as: calcium, copper and iron, 7. turbulent and rapid blood or CSF flow 8. air-containing spaces. Appropriate interpretation of signal intensity as well as analysis of lesion location and clinical symptoms enable a correct choice of a further diagnostic algorithm or, in many cases, final diagnosis based exclusively on an MRI examination.

No MeSH data available.


Related in: MedlinePlus