Magnetic Resonance Angiography of the Upper Extremity

Bannas, Peter; François, Christopher J.; Reeder, Scott B.

doi:10.1016/j.mric.2015.04.004

Cited by 8 publications

(7 citation statements)

References 68 publications

(88 reference statements)

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“…Images can be analysed with subtraction technique, which improves contrast resolution, or without subtraction technique, thus allowing visualisation of the background. Although not recommended for quantitative perfusion analysis, timeresolved sequences are ideal for visual analysis of the hand vasculature and provide a vascular map and haemodynamic information, including inflow in the vessels or arrival times to the tissue [1,3,18]. For the evaluation of the hand, we use a time-resolved 3D sequence with a repetition time (TR) of 4.4-7.9 ms and a minimal echo time (TE min), 20-30° flip angle, a field of view (FOV) of approximately 15 cm, an approximately 224 × 256 matrix, and a 1.8-2.0-mm slice thickness.…”

Section: (B) Mrimentioning

confidence: 99%

“…They are frequently responsible for a visible mass or an enlarged finger. Low-flow malformations are much more frequent than high-flow malformations [1,5,7,9,14,26,56,[61][62][63][64]. They may affect the skin with a colour change (red or blue).…”

Section: Vascular Malformationsmentioning

confidence: 99%

“…Contrast enhancement is slow and sometimes very delayed or even absent. On dynamic imaging, the earliest lesion enhancement occurs later than 5 s after arrival of contrast agent in the local arteries [1,26,61].…”

Section: Vascular Malformationsmentioning

confidence: 99%

“…In most cases, Doppler ultrasonography (US) is the first imaging modality to be performed. Computed tomography angiography (CTA) or magnetic resonance imaging (MRI) is indicated to improve lesion characterisation and treatment guidance [1,2]. MRI protocols should in most cases not only include conventional sequences but also contrastenhanced magnetic resonance angiography (MRA), which improves the evaluation of the vascular network and helps to characterise vascular malformations [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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CT angiography and MRI of hand vascular lesions: technical considerations and spectrum of imaging findings

Blum¹,

Gillet²,

Athlani

et al. 2021

Insights Imaging

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Vascular lesions of the hand are common and are distinct from vascular lesions elsewhere because of the terminal vascular network in this region, the frequent hand exposure to trauma and microtrauma, and the superficial location of the lesions. Vascular lesions in the hand may be secondary to local pathology, a proximal source of emboli, or systemic diseases with vascular compromise. In most cases, ischaemic conditions are investigated with Doppler ultrasonography. However, computed tomography angiography (CTA) or dynamic contrast-enhanced magnetic resonance angiography (MRA) is often necessary for treatment planning. MR imaging is frequently performed with MRA to distinguish between vascular malformations, vascular tumours, and perivascular tumours. Some vascular tumours preferentially affect the hand, such as pyogenic granulomas or spindle cell haemangiomas associated with Maffucci syndrome. Glomus tumours are the most frequent perivascular tumours of the hand. The purpose of this article is to describe the state-of-the-art acquisition protocols and illustrate the different patterns of vascular lesions and perivascular tumours of the hand.

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Section: (B) Mrimentioning

confidence: 99%

Section: Vascular Malformationsmentioning

confidence: 99%

Section: Vascular Malformationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CT angiography and MRI of hand vascular lesions: technical considerations and spectrum of imaging findings

Blum¹,

Gillet²,

Athlani

et al. 2021

Insights Imaging

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show abstract

“…7 The additional advantages of balanced field turbo echo MRA are high spatial resolution and large scan volume, which enables imaging of the entire thorax and abdomen without patient or coil reallocation during the scan. 8 The purpose of this study was to determine the type and frequency of vascular and organ malformations in adults with TE using non-contrast MRA and to assess the effect of the observed malformations on renal function.…”

Section: Classification Of Upper Limb Dysmelia and Eye Ear Or Facialmentioning

confidence: 99%