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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.


T2-weighted image shows a large amount of hypointense air within the lateral ventricles after a neurosurgical procedure.
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Related In: Results  -  Collection


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f18-poljradiol-80-40: T2-weighted image shows a large amount of hypointense air within the lateral ventricles after a neurosurgical procedure.

Mentions: Spaces filled with air demonstrate low signal in T1 and T2 sequences caused by lack of excited protons and thus lack of MR signal. Physiologically, air can be seen within the paranasal sinuses. The main causes of pathological accumulation of air in the intracranial space are operations on ventricles (Figure 18), penetrating traumatic injuries or bacterial inflammations of CNS [28].


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)

T2-weighted image shows a large amount of hypointense air within the lateral ventricles after a neurosurgical procedure.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

f18-poljradiol-80-40: T2-weighted image shows a large amount of hypointense air within the lateral ventricles after a neurosurgical procedure.
Mentions: Spaces filled with air demonstrate low signal in T1 and T2 sequences caused by lack of excited protons and thus lack of MR signal. Physiologically, air can be seen within the paranasal sinuses. The main causes of pathological accumulation of air in the intracranial space are operations on ventricles (Figure 18), penetrating traumatic injuries or bacterial inflammations of CNS [28].

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.