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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 43 - 49 (7page)
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Purpose: The aim of this study was to assess vascular changes and blood flow abnormalities in the common carotid arteries of patients with head and neck cancers after external radiotherapy, using color Doppler ultrasonography. Methods: We studied 24 patients treated with external radiotherapy for various head and neck cancers. In order to study the acute effects of irradiation on common carotid blood flow and arterial diameter changes, color Doppler ultrasonography parameters such as peak systolic velocity, end diastolic velocity, mean velocity, systolic-to-diastolic velocity (S/D) ratio, pulsatility index (PI), resistive index (RI), and instantaneous diameter changes were evaluated before and after external radiotherapy. Additionally, the blood volume flow (VF) values in the peak systolic and end diastolic phases, as well as mean velocity, were evaluated throughout three cardiac cycles using B-mode ultrasonic image processing. Results: The findings showed significant changes in the S/D ratio, PI, and RI of the common carotid arteries before and after external radiotherapy (P<0.05). Moreover, a significant decrease in artery diameter and blood VF was observed after radiotherapy relative to the pretreatment values. A significant correlation was found between the blood VF values estimated using ultrasonic measurements and mathematical methods throughout three cardiac cycles. Conclusion: The hemodynamic parameters of the common carotid arteries changed during radiotherapy. These arterial changes may lead to late adverse effects of radiotherapy, such as ischemic strokes and ischemic attacks.
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참고문헌 (22)
참고문헌 신청
Carmody BJ / 1999 / Accelerated carotid artery disease after high-dose head and neck radiotherapy: is there a role for routine carotid duplex surveillance? / J Vasc Surg 30:1045~1051
Gianicolo ME / 2010 / Effects of external irradiation of the neck region on intima media thickness of the common carotid artery / Cardiovasc Ultrasound 8:8
Zheng YP / 2000 / Assessment of neck tissue fibrosis using an ultrasound palpation system: a feasibility study / Med Biol Eng Comput 38:497~502
Maruyama Y / 2009 / Case of three delayed complications of radiotherapy: bilateral vocal cord immobility, esophageal obstruction and ruptured pseudoaneurysm of carotid artery / Auris Nasus Larynx 36:505~508
Garcez K / 2014 / Carotid dosimetry for T1 glottic cancer radiotherapy / Br J Radiol 87:20130754
Gianicolo ME / 2010 / Effects of external irradiation of the neck region on intima media thickness of the common carotid artery / Cardiovasc Ultrasound 8:8
Zheng YP / 2000 / Assessment of neck tissue fibrosis using an ultrasound palpation system: a feasibility study / Med Biol Eng Comput 38:497~502
Maruyama Y / 2009 / Case of three delayed complications of radiotherapy: bilateral vocal cord immobility, esophageal obstruction and ruptured pseudoaneurysm of carotid artery / Auris Nasus Larynx 36:505~508
Garcez K / 2014 / Carotid dosimetry for T1 glottic cancer radiotherapy / Br J Radiol 87:20130754
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