概括
心声图可以检测到大动脉植被,这些植被看起来像异常的回声. 它们的缩运动有助于确定植被的位置,有助于诊断疑似败血症.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
背景情况:
- 大动脉植被是一种严重的并发症,通常与传染性内心炎有关.
- 准确检测植被对于及时治疗和改善患者治疗结果至关重要.
研究的目的:
- 评估心声回声学在可视化和表征大动脉植被中的实用性.
- 与植被的解剖位置相关联回声心脏学发现.
主要方法:
- 对9名有解剖学证实大动脉植被的患者进行了心声扫描.
- 在缩期间的异常回声运动与大动脉顶上的植被位置相关分析.
主要成果:
- 异常回声的缩运动与植被位置相关:右冠状植被前部移动,非冠状植被后部移动.
- 左冠状动脉尖端植被似乎保持了大动脉中部的位置.
- 心声图的外观并不特定,但密集,移动的回声表明在败血症中的植被.
结论:
- 心声学可以根据回声运动表明大动脉植被的存在和位置.
- 一个正常的心声图并不能排除植被,特别是小的植被 (<5毫米).
- 心声图是诊断大动脉植被的一个有价值的工具,特别是当与临床疑似败血症相结合时.
相关概念视频
Assessing Blood pressure using a doppler ultrasound
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Location and Orientation of the Heart
The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
Assessment of the Cardiovascular System IV: Auscultation
Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
Cardiovascular System Abnormal Findings II: Auscultation
Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
Abnormal Heart Sounds
Gallops:


