Comprehensive Treatment and Vascular Architecture Characteristic of High-Flow Vascular Malformations in Periorbital Regions

2020 ◽  
Vol 32 (1) ◽  
pp. 187-192
Author(s):  
Peng Yang ◽  
Jian Ren ◽  
Jia-Xing Yu ◽  
Xiao-Dong Zhai ◽  
Peng Hu ◽  
...  
2021 ◽  
Vol 16 (6) ◽  
pp. 1374-1377
Author(s):  
Ayyaz Quddus ◽  
Priyesh Karia ◽  
Ruhaid Khurram ◽  
Arum Parthipun ◽  
Jocelyn Brookes

2013 ◽  
Vol 16 (1) ◽  
pp. 22-38 ◽  
Author(s):  
Robert J. Rosen ◽  
Naiem Nassiri ◽  
Jennifer E. Drury

Author(s):  
Florentine Höhn ◽  
Simone Hammer ◽  
Claudia Fellner ◽  
Florian Zeman ◽  
Wibke Uller ◽  
...  

Purpose To assess morphological and hemodynamic characteristics of peripheral vascular malformations on 3 T magnetic resonance imaging (MRI) including qualitative comparison of two fat-saturated sequences: short tau inversion recovery (STIR) and three-dimensional high-resolution volume interpolated gradient recalled echo (GRE). Materials and Methods During 9 months, 100 patients with suspected or known vascular malformations were prospectively assessed on a 3 T scanner using T2-weighted STIR and turbo spin echo (TSE), T1-weighted TSE, time-resolved contrast-enhanced magnetic resonance angiography (MRA) with interleaved stochastic trajectories (TWIST) and T1-weighted volume interpolated breath-hold examination (VIBE) after contrast enhancement. The analysis included signal behavior and morphologic and hemodynamic characteristics. Additionally, the image quality of the fat-saturated sequences was evaluated by 2 radiologists. Results 86 patients (14 dropouts; 57 female, 29 male; mean age 26.8 years, age range 1–56) were analyzed. 22 had high-flow and 64 low-flow malformations, including 14 with a lymphatic component. In 21 of 22 patients with high-flow malformations, typical characteristics (flow voids, hyperdynamic arteriovenous fistula, dilated main/feeder-arteries and draining veins) were documented. Patients with low-flow malformations had phleboliths in 35 cases, fluid-fluid levels in 47 and dilated draining veins in 23. Lymphatic malformations showed peripheral contrast enhancement of cyst walls in the volume interpolated GRE. The comparison of fat-saturated sequences showed significantly better results of the volume interpolated GRE in all categories except the presence of artifacts which were significantly reduced in the STIR (p < 0.05). Conclusion 3 T MRI with MRA provides detailed morphological and hemodynamic information of different types of peripheral vascular malformations. Contrast-enhanced high-resolution volume interpolated GRE proved superior to STIR in differentiating morphologic features and to be diagnostic in the differentiation of lymphatic parts and joint involvement. Key Points:  Citation Format


Author(s):  
M. Baciut ◽  
G. Baciut ◽  
A. Lancu ◽  
L. Hurubeanu ◽  
R.S. Campian ◽  
...  

2004 ◽  
Vol 15 (10) ◽  
pp. 1071-1080 ◽  
Author(s):  
Kong T. Tan ◽  
Martin E. Simons ◽  
Dheeraj K. Rajan ◽  
Karel Terbrugge

1996 ◽  
Vol 36 (2) ◽  
pp. 147-153 ◽  
Author(s):  
Ming-Ting Chen ◽  
Shyue-Yih Horng ◽  
Eng-Kean Yeong ◽  
Quen-Dih Pan

2020 ◽  
Vol 6 (3) ◽  
pp. 20200021
Author(s):  
Sanjeev Ramachandran ◽  
Jonathan Delf ◽  
Jocelyn Brookes ◽  
William Adair ◽  
Harjeet Rayt ◽  
...  

We present a novel use of arterial spin labelling (ASL), a MRI perfusion technique, to assess a high-flow, peripheral vascular malformation (PVM), specifically a large arteriovenous malformation in the left forearm of a 20-year-old female. While there has been experience with ASL in the assessment of intracranial vascular malformations, there has been no known use of ASL in the evaluation of PVMs. We also discuss the potential benefits and limitations of ASL in the imaging of PVMs. The promising results from this case warrant further research on ASL in the investigation of PVMs.


PEDIATRICS ◽  
1987 ◽  
Vol 80 (3) ◽  
pp. 386-394
Author(s):  
Patricia E. Burrows ◽  
Pierre L. Lasjaunias ◽  
Karel G. Ter Brugge ◽  
Olaf Flodmark

Indications for and results and complications of embolization of lesions of the head and neck were analyzed retrospectively. The procedures were performed since 1980 on an emergent or urgent basis in 30 infants and children by an experienced interventional neuroradiologist in Bicetre, France. Indications for embolization included hemorrhage, occular occlusion, respiratory obstruction, CNS complications or potential complications, interference with nutrition, and functional impairment related to the effect of the lesion on the developing facial skeleton and teeth. The specific lesions included seven hemangiomas (palpebral, subglottic, and nasal) and 20 vascular malformations (maxillofacial), auricular, dural, cerebral [including three vein of Galen malformations] and spinomedullary). Embolization was efficacious in 28 of 30 patients. Hemangiomas (potentially involutive tumors) responded dramatically with arrest of the proliferative phase and shrinking of the mass. Combined hemovascular lymphatic malformations (hemolymphangiomas) of the tongue demonstrated a variable decrease in size. High-flow evolutive arteriovenous malformations involving the teeth and dura were controlled but required multiple embolizations. One infant with a vein of Galen arteriovenous malformation died. Three local complications occurred in two patients. No cerebral ischemic or femoral artery complications occurred.


2021 ◽  
pp. 159101992110449
Author(s):  
Anthony S. Larson ◽  
Waleed Brinjikji ◽  
Timo Krings ◽  
Julie B. Guerin

The cerebrofacial metameric syndromes are a group of congenital syndromes that result in vascular malformations throughout specific anatomical distributions of the brain, cranium and face. Multiple reports of patients with high-flow or low-flow vascular malformations following a metameric distribution have supported this idea. There has been much advancement in understanding of segmental organization and cell migration since the concept of metameric vascular syndromes was first proposed. We aim to give an updated review of these embryological considerations and then propose a more detailed classification system for these syndromes, predominately incorporating the contribution of neural crest cells and somitomeres to the pharyngeal arches.


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