Oscillating thromboemboli within the extracranial internal carotid artery demonstrated by ultrasonography in patients with acute cardioembolic stroke

Simultaneous Cardiogenic Embolism in Bilateral Internal Carotid Arteries – Carotid Ultrasonography, MRI and Autopsy Findings

“…These dynamic findings in the color Doppler images may indicate that a mobile embolus from the heart became fixed in the distal portion of the ICA and subsequently obstructed the flow completely. Similar findings showing oscillating mass echoes in 5 patients were reported by Kimura et al [15] who noted that the detection of oscillating mass echoes is valuable to diagnose cardiogenic emboli. If color Doppler imaging detects only the subsequent stabilized thrombus, it may be difficult to distinguish cardiogenic occlusion from atherothrombotic occlusion.…”

Characteristics and the Fate of Intraluminal Thrombus of the Intracranial and Extracranial Cerebral Arteries in Acute Ischemic Stroke Patients

“…In this study, thrombi disappeared spontaneously with medical treatment on follow-up vascular imaging studies without clinical and imaging evidence of distal migration or stroke. This favorable response has been described in a few other case reports [10,11,12]. Spontaneous lysis of embolized thrombi in the cerebral arteries is frequently observed in acute stroke patients.…”

Carotid Intima-Media Thickness for Atherosclerosis

“…An oscillating intraluminal mass echo in the CCA or ICA has been reported in patients with cardioembolic stroke 51) . A diffuse circumferential mild hypoechoic thickening of the intima-media complex resulting from granulomatous inflammatory changes, termed the "macaroni sign," has been detected in patients with Takayasu disease 52) .…”