2024年12月4日 · Aortic dissection is the prototype and most common form of acute aortic syndromes and a type of arterial dissection. It occurs when blood enters the medial layer of the aortic wall through a tear or penetrating ulcer in the intima and tracks longitudinally along with the media , forming a second blood-filled channel (false lumen) within the ...

2024年1月10日 · Arterial dissection occurs when blood enters the media through a tear or ulcer in the intima and tracks along the media, forming a second blood-filled channel within the wall. The normal lumen lined by intima is called the true lumen and the blood-filled channel in the media is called the false lumen .

2024年11月25日 · Aortic intramural hematoma (IMH) is an atypical form of aortic dissection due to a contained hemorrhage into the aortic wall usually from the vasa vasorum without an intimal tear. It forms part of the acute aortic syndrome spectrum along with penetrating atherosclerotic ulcer and classical aortic dissection.

2020年12月8日 · The artifact is caused by the differential refraction of the ultrasound beam while passing through the relatively echogenic rectus abdominis muscles, and the comparatively hypoechoic fatty tissue underneath. The interface between …

Color Doppler and Duplex ultrasound images showed patent vessels without thrombus, a biphasic wave with an atypical spectral signal and hemodynamically non-significant stenosis. CT angiography with contrast confirmed the findings. Doppler ultrasound helps in the early diagnosis.

2024年12月29日 · Internal carotid artery (ICA) dissection, like arterial dissection elsewhere, is a result of blood entering the media through a tear in the intima 1 and is a common cause of stroke in younger patients.

2024年9月16日 · Abdominal radiographs are not a sensitive mode of detection. A calcified aortic aneurysm may be seen with a secondary blurring of the psoas outline in case of retroperitoneal hemorrhage. Ultrasound. Not used for routine diagnosis but reported features include: focal dilatation of the aorta (aneurysm)

2021年5月7日 · The Mercedes-Benz sign can be seen in aortic dissection on CT 1. It is seen as three distinct intimal flaps that have a triradiate configuration similar to the Mercedes-Benz logo (Figure 1). Two of the three lumens outlined by these intimal flaps belong to the false lumen of aortic dissection.

2024年3月15日 · When issuing an MRI or CT report on a patient with an aortic aneurysm, whether it be thoracic or abdominal, a number of features should be mentioned to aid the referring clinician in managing the patient. Reporting tips for aortic aneurysms include 1,2: size and shape. sac dimensions (outer surface to outer surface)

2023年6月1日 · Point-of-care ultrasound refers to ultrasonography which may be simultaneously performed, interpreted and utilized by a health care provider at the time of consultation, in proximity to the patient.