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Correlation of clinical and computed tomographic findings in stroke patients
K A Sotaniemi1, J Pyhtinen, V V Myllylä
1Department of Neurology, University of Oulu, Finland.
Insights
Early computed tomography (CT) is crucial for diagnosing acute cerebrovascular disease. Combining CT scans with thorough neurologic exams improves stroke diagnosis and treatment planning, preventing missed cases.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Acute cerebrovascular disease diagnosis relies on clinical assessment and imaging.
- Computed tomography (CT) plays a vital role in identifying stroke and other brain abnormalities.
Purpose of the Study:
- To evaluate the correlation between clinical features and computed tomographic findings in patients with acute cerebrovascular disease.
- To determine the diagnostic utility of CT in identifying cerebrovascular lesions.
Main Methods:
- Prospective study of 1,191 consecutive patients with suspected acute cerebrovascular disease.
- Analysis of clinical symptoms, neurological signs, and computed tomographic findings.
- Comparison of CT results with final clinical diagnoses.
Main Results:
- CT identified relevant lesions in 154 of 386 patients initially suspected of stroke (52 hemorrhagic, 102 ischemic).
- CT revealed cerebrovascular lesions in 38 of 805 patients with non-stroke neurological symptoms (35 ischemic).
- CT findings were compatible with the final diagnosis in 84.2% of patients with lesions; 3.2% of cerebrovascular disorders would have been missed without CT.
Conclusions:
- Early computed tomography is essential for accurate stroke diagnosis and therapeutic decisions.
- A combination of careful neurologic assessment and timely CT imaging is crucial for managing acute cerebrovascular disease.
- CT imaging aids in differentiating stroke from other neurological conditions and guides treatment strategies.
Abstract:
We evaluated the correlation between clinical features and computed tomographic findings in a prospective study of 1,191 consecutive patients with acute cerebrovascular disease seen during 1 year. In the 386 patients in whom symptoms and signs initially suggested a cerebrovascular disorder, computed tomography revealed a relevant lesion in 154 (hemorrhagic in 52 [33.8%], ischemic in 102 [66.2%]) and a significant nonstroke abnormality in 14 (3.1%). Among the remaining 805 patients with symptoms and signs suggesting some central nervous system disorder other than stroke, computed tomography revealed a cerebrovascular lesion in 38 (4.7%); 35 of these lesions were ischemic. The computed tomographic findings was compatible with the final clinical diagnosis in 192 (84.2%) of the 228 patients with lesions. In the entire sample of 1,191 patients, a cerebrovascular disorder would have been missed in 38 (3.2%) without computed tomography. On the other hand, computed tomography failed to visualize a cerebrovascular lesion in 40 patients in whom such a lesion was clinically obvious. Our results emphasize that both careful neurologic assessment and a policy of early computed tomography are of crucial importance in the diagnosis of stroke and for therapeutic considerations.