A case in which contrast-enhanced transoral carotid ultrasonography was useful for pre- and post-procedural evaluation in carotid artery stenting

Abstract

Contrast-enhanced transoral carotid ultrasonography (CETOCU) is a novel examination modality that is superior to other modalities in the cases of pseudo-occlusion with severe arteriosclerotic stenosis of the distal internal carotid artery (ICA), and is also useful for noninvasively evaluating changes over time in the vessel distal to the stent following carotid artery stenting (CAS). We report a case of a patient who we evaluated with CETOCU for a pseudo-occlusive ICA before and after CAS.

Utility of transoral motion‐mode ultrasonography to detect tongue fasciculation in patients with amyotrophic lateral sclerosis

“…[3][4][5][6] As methods to evaluate tongue fasciculations by ultrasonography, the submandibular approach and the transoral approach using a "hockey-stick" probe have been reported to improve the sensitivity of ALS diagnosis. 3,5 We recently demonstrated the utility of transoral carotid ultrasonography using a transvaginal probe [7][8][9][10] to evaluate involuntary movements of the tongue in patients with palatal tremor, and we called this method "transoral motion-mode ultrasonography" (TOMU). 11 Because TOMU enables direct contact of the probe with the tongue, providing an image with a large field of view, we hypothesized that this method would be useful for the assessment of tongue fasciculations in patients with ALS.…”

“…We recently demonstrated the utility of transoral carotid ultrasonography using a transvaginal probe 7‐10 to evaluate involuntary movements of the tongue in patients with palatal tremor, and we called this method “transoral motion‐mode ultrasonography” (TOMU) 11 . Because TOMU enables direct contact of the probe with the tongue, providing an image with a large field of view, we hypothesized that this method would be useful for the assessment of tongue fasciculations in patients with ALS.…”

Contrast‐enhanced transoral carotid ultrasonography for the evaluation of plaque protrusion after carotid artery stenting

“…Transoral carotid ultrasonography (TOCU) is a useful imaging modality for diagnosis of extracranial internal carotid artery (ICA) lesions . Contrast‐enhanced transoral carotid ultrasonography (CETOCU) provides a clear intraluminal image of the distal extracranial ICA that cannot be reached from the neck . We report the case of a patient with plaque protrusion after carotid artery stenting (CAS), in whom CETOCU offered clear and detailed images of the protrusion.…”

Contrast‐enhanced transoral carotid ultrasonography for the diagnosis and follow‐up of extracranial internal carotid artery dissection: A case report

“…Compared with other imaging modalities, TOCU has the advantages of bedside availability, lesser invasiveness, lower cost, absence of exposure to radiation, and no significant contraindication. In recent case reports, intravenous injection of ultrasound contrast agents (either perfluorobutane: Sonazoid, Daiichi Sankyo, Tokyo, Japan, or sulfur hexafluoride: Sonovue, Bracco, Milan, Italy), produce a clear image of the distal extracranial ICA lumen which cannot be easily reached from the neck . Thus, TOCU and CE‐TOCU are additional approaches to conventional imaging modalities such as carotid ultrasonography, computerized X‐Ray tomography (CT), magnetic resonance imaging (MRI), and magnetic resonance angiography (MRA) for the evaluation of carotid artery dissection.…”