Cerebral computed tomographic angiography scan delay in subarachnoid hemorrhage.
Neurol India
;
2005 Mar; 53(1): 73-7; discussion 77-8
Article
in English
| IMSEAR
| ID: sea-121663
ABSTRACT
CONTEXT Computed tomographic angiography (CTA) is widely applied in the evaluation of cerebral vessels. Contrast enhancement in cerebral CTA without care or test bolus is not always sufficient for high-quality images. AIMS:
Evaluation of the possibilities of calculation of scan delay for cerebral CTA in case of subarachnoid hemorrhage (SAH), based on clinical data of a patient and to find out prognostic error of the model. SETTINGS ANDDESIGN:
Prospective study in Neurosurgery and Radiology departments. MATERIALS ANDMETHODS:
Scan delay in 53 patients suffering an acute SAH was measured employing test bolus technique. Cerebral CTA was performed afterwards. STATISTICAL ANALYSIS USED SPSS for Windows v.10.1 software package was applied for dispersion analysis, including one-sample Kolmogorov-Smirnov's test and Levene's Test of Equality of Error Variances.RESULTS:
A statistical model for the prediction of scan delay in SAH was developed. Cerebral CTA scan delay was dependent upon age, neurological status and impact of the latter factors together (P< 0.05). The determined mean square error of prognosis of scan delay of the developed model equals 3.3 sec.CONCLUSION:
Using our proposed model it is possible to estimate an optimal delay time for CTA in most patients with SAH with a determined error.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Prognosis
/
Subarachnoid Hemorrhage
/
Time Factors
/
Female
/
Humans
/
Male
/
Cerebral Angiography
/
Tomography, X-Ray Computed
/
Prospective Studies
/
Models, Statistical
Type of study:
Observational study
/
Prognostic study
/
Risk factors
Language:
English
Journal:
Neurol India
Year:
2005
Type:
Article
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