Transcranial Doppler Sonographic Findings in Middle Cerebral Artery Disease

Mattle, Heinrich; Grolimund, Peter; Huber, Peter M.; Sturzenegger, Matthias; Zurbrügg, H. R.

doi:10.1001/archneur.1988.00520270067022

Cited by 112 publications

(85 citation statements)

References 28 publications

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“…However, the previous studies excluded cases with mild stenosis and included fewer cases of multiple stenoses than our study did. [1][2][3][4][5][6][7] If we limited our study to single severe M1 lesions, then the sensitivity of abnormalities in MV in detecting M1 stenoses would be 88%, which is comparable to the rates in previous reports.…”

Section: Discussionsupporting

confidence: 63%

“…Focal areas of spectral waveform abnormalities and a compensatory increase in MV in collateral vessels are important diagnostic features, as reported previously. 1,2,[16][17][18] However, it is not clear how much and when these additional criteria increase diagnostic accuracy. Abnormalities in MV seem to be important in the diagnosis of moderate to severe stenosis, whereas focal areas of waveform abnormalities and compensatory increases in MV in collateral vessels seem to be important in mild stenosis and occlusion, respectively ( Figure 1B).…”

Section: Discussionmentioning

confidence: 99%

“…[2][3][4]6 In most studies, cases were limited to patients with severe stenosis or occlusion and excluded patients with mild stenosis [1][2][3][4][5][6][7] or multiple sites of stenosis. 2,3,5,6 However, multiple intracranial stenoses are not uncommon, especially in Asians, and they represent a wellknown factor of confusion in TCD analysis.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3][4][5][6] In the majority of reports, a focal area of increase in mean velocity (MV) and an absence of flow signals are the main findings reflecting an intracranial vascular lesion; other criteria such as focal areas of disturbed spectral waveforms and a compensatory increase in anterior or posterior cerebral artery flow velocity are…”

mentioning

confidence: 99%

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Transcranial Doppler findings in middle cerebral arterial occlusive disease in relation to degree of stenosis and presence of concomitant stenoses

Bang

Cho

Han

et al. 2003

J of Clinical Ultrasound

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ABSTRACT:Purpose. We evaluated the accuracy of transcranial Doppler (TCD) criteria in detecting middle cerebral artery (MCA) stenoses other than solitary severe stenoses.Methods. Three TCD criteria were evaluated in patients with acute MCA territory infarction who also underwent angiography: abnormalities in mean velocity (MV), focal areas of spectral waveform abnormalities, and compensatory increase in MV in collateral vessels.Results. Among 102 patients studied, angiography revealed MCA lesions in 48: 16 had uncomplicated lesions (single stenosis of moderate to severe degree), 19 had mildly complicated lesions (single MCA stenosis of other than moderate to severe degree, or moderate to severe MCA stenosis with a concomitant lesion outside the MCA), and 13 had severely complicated lesions (MCA stenosis of other than moderate to severe degree with a concomitant lesion outside the MCA). The sensitivity of abnormalities in MV in uncomplicated MCA lesions was 81%, whereas it was 53% in mildly complicated MCA lesions and 38% in severely complicated MCA lesions. However, a compensatory increase in MV in collaterals was more frequently found in complicated MCA lesions, and focal areas of spectral waveform abnormalities were observed fairly consistently in all groups.Conclusions. TCD findings of focal areas of spectral waveform abnormalities and compensatory collateral flow were common in complicated MCA lesions and may improve the specificity of TCD in the diagnosis of MCA stenosis.

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Section: Discussionsupporting

confidence: 63%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Transcranial Doppler findings in middle cerebral arterial occlusive disease in relation to degree of stenosis and presence of concomitant stenoses

Bang

Cho

Han

et al. 2003

J of Clinical Ultrasound

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show abstract

“…Several valuable points are demonstrated by this case: (1) color amplitude Doppler may demonstrate flow that cannot be detected with conventional color Doppler technique (mean Doppler frequency shift); (2) secondary and tertiary signs obtained with transcranial Doppler sonography can help to localize the site of stenosis; (3) transcranial Doppler technique may demonstrate patency of vessels supplied by collateral flow even when these vessels are not visualized by conventional or MR arteriography; and (4) transcranial Doppler sonography is indicated whenever a high-resistance Doppler waveform is detected in the extracranial internal carotid or vertebral artery.…”

Section: Resultsmentioning

confidence: 94%