Diagnostics and characterisation of preocclusive stenoses and occlusions of the internal carotid artery with B-flow

Jung, Ernst-Michael; Kubale, R.; Ritter, G.; Gallegos, María Teresa; Jungius, K. P.; Rupp, N; Clevert, D.‐A.

doi:10.1007/s00330-006-0285-3

Cited by 25 publications

(22 citation statements)

References 35 publications

(63 reference statements)

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“…This is facilitated too by the fact that high-velocity and low-velocity flow phenomena are registered at the same time without flow artifacts in comparison to the color Doppler [19][20][21][22][23][24][25][26][27].…”

Section: Discussionmentioning

confidence: 99%

B-flow and color Doppler sonography findings in iatrogenic carotid–jugular arteriovenous fistula

Clevert

Kubisch

Weckbach

et al. 2010

Clinical Hemorheology and Microcirculation

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We describe the case of a 66-year-old woman with an aortic valve reconstruction. Subsequently she presented with an arteriovenous fistula (AVF) between the left common carotid artery and internal jugular vein following several attempts of jugular catheter insertion. Due to aliasing, correct visualization of the fistula track was hindered by conventional color Doppler. However, by using the B-flow imaging technique, the fistula track could be detected without aliasing or overwriting. Duplex examination revealed an AVF between both vessels with an arterialized waveform in the left jugular vein and a high-velocity turbulent flow inside the fistula. Due to these findings we will change our routine scanning protocol for extracranial vessels and will use B-flow in indistinctive or difficult conditions to obtain additional informations.

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Section: Discussionmentioning

confidence: 99%

B-flow and color Doppler sonography findings in iatrogenic carotid–jugular arteriovenous fistula

Clevert

Kubisch

Weckbach

et al. 2010

Clinical Hemorheology and Microcirculation

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“…Using receiver-operating characteristic (ROC) analysis, the calculated optimal cut-off values of a cavity’s orifice, depth and width for the diagnosis of fibrous cap disruption were 1.4 mm, 1.3 mm and 1.88 mm respectively [86]. The B-flow technique is yet another US technique that can be used as an alternative to the Doppler technique and has been used for detection of carotid ulcers, with greater diagnostic accuracy than the colour Doppler technique [74, 87]. Using this technique, a swirling pattern of blood flow was demonstrated within ulcer cavities, a finding in keeping with previous experimental and US observations [33, 88].…”

Section: Imaging Of Ulcerationmentioning

confidence: 99%

Imaging of the ulcerated carotid atherosclerotic plaque: a review of the literature

et al. 2017

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Carotid atherosclerotic disease constitutes a major modern health problem whose diagnosis primarily relies on imaging. Grading of stenosis has been long used as the main factor for risk stratification and guiding of management. Nevertheless, increasing evidence has shown that additional plaque characteristics such as plaque composition and surface morphology play an important role in the occurrence of symptoms, justifying the term “vulnerable plaque”. Carotid plaque surface characteristics either in the form of surface irregularities or ulceration represent an important factor of vulnerability and are associated with the occurrence of neurologic symptoms. The delineation of the carotid plaque surface can be performed with virtually all imaging modalities including ultrasound, contrast-enhanced ultrasound, multi-detector computed tomography angiography, magnetic resonance angiography and the traditional reference method of angiography. These techniques have shown varying levels of diagnostic accuracy for the identification of ulcerated carotid plaques or plaque surface irregularities. As a consequence and given its high clinical significance, radiologists should be familiar with the various aspects of this entity, including its definition, classification, imaging findings on different imaging modalities and associations. The purpose of this review is to present the current literature regarding carotid plaque ulcerations and present illustrative images of ulcerated carotid plaques.Teaching Points • Plaque surface and ulceration represent risk factors for stroke in carotid disease. • Characterisation of the plaque surface and ulcerations can be performed with every modality. • US is the first-line modality for carotid disease and identification of ulcerations. • The administration of microbubbles increases US accuracy for diagnosis of carotid ulceration. • MDCTA and MRA are valuable for diagnosing ulceration and evaluating plaque composition.

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“…Vorteile ergeben sich bei der Betrachtung des Lumens nach CAS, bei der Differenzierung höchstgradiger Stenosen ("near occlusion") und Verschlüssen und bei der Beurteilung der Plaquestruktur [13,14,23]. Eine Übersicht der verschiedenen Techniken zeigt die .…”

Section: Planimetrische Messungen Zu Ungenauunclassified

Ultraschall in der Gefäßchirurgie

Lang

2007

Chirurg

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Diagnosing vascular diseases by ultrasound is of major interest to vascular surgeons and now regarded as the primary noninvasive technique. This paper presents developments in four different fields: stenoses of the carotid arteries, peripheral artery occlusive diseases (PAOD) including surveillance programs, diseases of the veins, and abdominal aortic aneurysm. Calculating the extent of a carotid artery stenosis is now accurate, but plaque imaging remains complex. Examination by ultrasound should precede any invasive techniques in PAOD. Duplex surveillance on a routine basis is no longer recommended after infrainguinal bypass. In future vascular diseases will be diagnosed primarily by ultrasound. Diagnosis of abdominal aneurysm is now absolutely reliable, whereas planning and follow-up of endoluminal techniques are quite restricted.

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Diagnostics and characterisation of preocclusive stenoses and occlusions of the internal carotid artery with B-flow

Cited by 25 publications

References 35 publications

B-flow and color Doppler sonography findings in iatrogenic carotid–jugular arteriovenous fistula

B-flow and color Doppler sonography findings in iatrogenic carotid–jugular arteriovenous fistula

Imaging of the ulcerated carotid atherosclerotic plaque: a review of the literature

Ultraschall in der Gefäßchirurgie

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