Ischemic stroke other imaging findings
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Ischemic Stroke Microchapters |
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Ischemic stroke other imaging findings On the Web |
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American Roentgen Ray Society Images of Ischemic stroke other imaging findings |
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Risk calculators and risk factors for Ischemic stroke other imaging findings |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Aysha Anwar, M.B.B.S[2]
Overview
When a stroke has been diagnosed, various other studies may be performed to determine the underlying etiology. With the current treatment and diagnosis options available, it is of particular importance to determine whether there is a peripheral source of emboli. Test selection may vary, since the cause of stroke varies with age, comorbidity and the clinical presentation. An angiogram of the cerebral vasculature (if a bleed is thought to have originated from an aneurysm or arteriovenous malformation)
Other Imaging Studies
Other imaging studies which may help diagnose the cause and risk factors of ischemic stroke may include:[1]
| Other imaging studies | Rationale |
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| CT angiography [2][3][4] |
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| MR angiography[1][5] | To diagnose basilar artery thrombosis and large intracranial thrombus |
| Digital subtraction angiography[1][6] |
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| Positron emission tomography[7][8] | May help determine the extent of irreversible tissue damage and pneumbra |
| SPECT scan | |
| Arterial spin labelling | May help diagnose the presence of collateral blood flow |
CT angiography
- May help determine the qualitative cerebral blood flow volume to the area surrounding the infarct tissue and can determine the risk of future infarct. [2][3][4]
- May help diagnose basilar artery thrombosis and acute large intracranial thrombosis
MR angiography
SPECT scan
Digital subtraction angiography
- May help diagnose collateral flow in cases of ischemic stroke.[1][6]
- May be beneficial in diiagnosis of basilar artery thrombosis.
Positron emission tomography
- Irreversible tissue damage and pneumbra [7]
Arterial spin labelling
- May help diagnose the presence of collateral blood flow
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Wintermark M, Sanelli PC, Albers GW, Bello J, Derdeyn C, Hetts SW; et al. (2013). "Imaging recommendations for acute stroke and transient ischemic attack patients: A joint statement by the American Society of Neuroradiology, the American College of Radiology, and the Society of NeuroInterventional Surgery". AJNR Am J Neuroradiol. 34 (11): E117–27. doi:10.3174/ajnr.A3690. PMC 4072500. PMID 23907247.
- ↑ 2.0 2.1 Latchaw RE, Alberts MJ, Lev MH, Connors JJ, Harbaugh RE, Higashida RT; et al. (2009). "Recommendations for imaging of acute ischemic stroke: a scientific statement from the American Heart Association". Stroke. 40 (11): 3646–78. doi:10.1161/STROKEAHA.108.192616. PMID 19797189.
- ↑ 3.0 3.1 Shrier DA, Tanaka H, Numaguchi Y, Konno S, Patel U, Shibata D (1997). "CT angiography in the evaluation of acute stroke". AJNR Am J Neuroradiol. 18 (6): 1011–20. PMID 9194426.
- ↑ 4.0 4.1 Verro P, Tanenbaum LN, Borden NM, Sen S, Eshkar N (2002). "CT angiography in acute ischemic stroke: preliminary results". Stroke. 33 (1): 276–8. PMID 11779922.
- ↑ 5.0 5.1 Verro P, Tanenbaum LN, Borden N, Eshkar N, Sen S (2007). "Clinical application of CT angiography in acute ischemic stroke". Clin Neurol Neurosurg. 109 (2): 138–45. doi:10.1016/j.clineuro.2006.07.002. PMID 16934921.
- ↑ 6.0 6.1 Lange MC, Bruch TP, Pedrozo JC, Maranha L, Sakae TM, Pacheco R; et al. (2015). "The use of neurovascular ultrasound versus digital subtraction angiography in acute ischemic stroke". Arq Neuropsiquiatr. 73 (3): 218–22. doi:10.1590/0004-282X20140231. PMID 25807127.
- ↑ 7.0 7.1 Heiss WD, Sobesky J (2008). "Comparison of PET and DW/PW-MRI in acute ischemic stroke". Keio J Med. 57 (3): 125–31. PMID 18854664.
- ↑ Copen WA, Schaefer PW, Wu O (2011). "MR perfusion imaging in acute ischemic stroke". Neuroimaging Clin N Am. 21 (2): 259–83, x. doi:10.1016/j.nic.2011.02.007. PMC 3135980. PMID 21640299.