Quantitative imaging in medicine and surgery · 2026
Ultrasound assessment of blood flow in branches of the external carotid artery as potential donors for microsurgical revascularisation of the central nervous system.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Dorobisz Lukasz, Magdziarz Marcin, Szarek Dariusz
Аннотация
BACKGROUND: Vascular bypasses that connect branches of the superficial temporal artery (STA) to cerebral arteries are a recognised treatment option for carefully selected cases involving various cerebral vascular conditions. Among the different microsurgical techniques, one common method is the direct STA-middle cerebral artery (MCA) bypass. This study aimed to evaluate blood flow parameters in the STA and its branches in healthy volunteers.
METHODS: The study involved ultrasound measurements on a group of 157 adult volunteers without vascular disease. The male-to-female ratio was 1.01. Additionally, cardiovascular risk factors within the population were assessed. Blood flow parameters-peak systolic velocity (PSV), end-diastolic velocity (EDV), mean velocity (MnV), and minute flow-were obtained. Statistical analysis of the acquired values was performed, and the relation charts have been created.
RESULTS: The STA diameters ranged from 0.7 to 2.3 mm, with minute flow rates from 3 to over 100 mL/min. The sex ratio for each vessel size was approximately 1.15, favoring males (P value <0.001). Significantly higher flow values in right STA were observed in men (P value =0.01). Gender differences for left STA were borderline statistically significant (P value =0.051). Neither vessel diameter nor flow rate was influenced by age or cerebrovascular risk factors. No significant difference was observed between sides of the head, though individual cases showed notable left-right asymmetries. Both artery size and blood flow volume increased gradually with higher body weight and overall growth in both female and male groups. There was no strong correlation between the diameters and flow rates of the terminal branches and the trunk of the temporal artery (R value <0.57).
CONCLUSIONS: Assessing the vessel intended as a graft donor directly is essential in all revascularisation procedures. Comparing patient-specific features to population references can aid in forecasting the success of bypass blood flow. Ultrasound measurement might provide a good compromise between precision and ease of access.
METHODS: The study involved ultrasound measurements on a group of 157 adult volunteers without vascular disease. The male-to-female ratio was 1.01. Additionally, cardiovascular risk factors within the population were assessed. Blood flow parameters-peak systolic velocity (PSV), end-diastolic velocity (EDV), mean velocity (MnV), and minute flow-were obtained. Statistical analysis of the acquired values was performed, and the relation charts have been created.
RESULTS: The STA diameters ranged from 0.7 to 2.3 mm, with minute flow rates from 3 to over 100 mL/min. The sex ratio for each vessel size was approximately 1.15, favoring males (P value <0.001). Significantly higher flow values in right STA were observed in men (P value =0.01). Gender differences for left STA were borderline statistically significant (P value =0.051). Neither vessel diameter nor flow rate was influenced by age or cerebrovascular risk factors. No significant difference was observed between sides of the head, though individual cases showed notable left-right asymmetries. Both artery size and blood flow volume increased gradually with higher body weight and overall growth in both female and male groups. There was no strong correlation between the diameters and flow rates of the terminal branches and the trunk of the temporal artery (R value <0.57).
CONCLUSIONS: Assessing the vessel intended as a graft donor directly is essential in all revascularisation procedures. Comparing patient-specific features to population references can aid in forecasting the success of bypass blood flow. Ultrasound measurement might provide a good compromise between precision and ease of access.