scholarly journals Mosaic RASopathy due to KRAS variant G12D with segmental overgrowth and associated peripheral vascular malformations

2021 ◽  
Author(s):  
Vanessa Franziska Schmidt ◽  
Ilse Wieland ◽  
Walter A. Wohlgemuth ◽  
Jens Ricke ◽  
Moritz Wildgruber ◽  
...  
Keyword(s):  
Vascular Malformations ◽  
Peripheral Vascular ◽  
Segmental Overgrowth

scholarly journals Detecting changes in quality‐of‐life over time in patients with peripheral vascular malformations: the OVAMA project

2020 ◽  
Vol 182 (6) ◽  
Author(s):  
M.M. Lokhorst ◽  
S.E.R. Horbach ◽  
M. Waner ◽  
T.M. O ◽  
C.J.M. Vleuten ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Vascular Malformations ◽  
Peripheral Vascular ◽  
Over Time

scholarly journals 3T MRI of Peripheral Vascular Malformations: Characteristics and Comparison of Two Fat-Saturated sequences: Short Tau Inversion Recovery Versus Three-Dimensional High-Resolution Volume Interpolated Gradient Recalled Echo

2020 ◽  
Author(s):  
Florentine Höhn ◽  
Simone Hammer ◽  
Claudia Fellner ◽  
Florian Zeman ◽  
Wibke Uller ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
High Resolution ◽  
Vascular Malformations ◽  
Three Dimensional ◽  
High Flow ◽  
Low Flow ◽  
Peripheral Vascular ◽  
Contrast Enhanced ◽  
Hemodynamic Characteristics ◽  
Short Tau Inversion Recovery

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

scholarly journals Finalizing the international core domain set for peripheral vascular malformations: the OVAMA project

2019 ◽  
Vol 181 (5) ◽  
pp. 1076-1078 ◽  
Author(s):  
M.M. Lokhorst ◽  
S.E.R. Horbach ◽  
C.M.A.M. Horst ◽  
P.I. Spuls ◽  
Keyword(s):  
Vascular Malformations ◽  
Peripheral Vascular ◽  
Core Domain ◽  
Core Domain Set

scholarly journals Peripheral Vascular Anomalies – Essentials in Periinterventional Imaging

2019 ◽  
Vol 192 (02) ◽  
pp. 150-162 ◽  
Author(s):  
Maliha Sadick ◽  
Daniel Overhoff ◽  
Bettina Baessler ◽  
Naema von Spangenberg ◽  
Lena Krebs ◽  
...  
Keyword(s):  
Therapeutic Approach ◽  
Vascular Malformations ◽  
Vascular Anomaly ◽  
Flow Dynamics ◽  
Vascular Anomalies ◽  
Vascular Tumors ◽  
Slow Flow ◽  
Peripheral Vascular ◽  
Fast Flow ◽  
Selection Of

Background Peripheral vascular anomalies represent a rare disease with an underlying congenital mesenchymal and angiogenetic disorder. Vascular anomalies are subdivided into vascular tumors and vascular malformations. Both entities include characteristic features and flow dynamics. Symptoms can occur in infancy and adulthood. Vascular anomalies may be accompanied by characteristic clinical findings which facilitate disease classification. The role of periinterventional imaging is to confirm the clinically suspected diagnosis, taking into account the extent and location of the vascular anomaly for the purpose of treatment planning. Method In accordance with the International Society for the Study of Vascular Anomalies (ISSVA), vascular anomalies are mainly categorized as slow-flow and fast-flow lesions. Based on the diagnosis and flow dynamics of the vascular anomaly, the recommended periinterventional imaging is described, ranging from ultrasonography and plain radiography to dedicated ultrafast CT and MRI protocols, percutaneous phlebography and transcatheter angiography. Each vascular anomaly requires dedicated imaging. Differentiation between slow-flow and fast-flow vascular anomalies facilitates selection of the appropriate imaging modality or a combination of diagnostic tools. Results Slow-flow congenital vascular anomalies mainly include venous and lymphatic or combined malformations. Ultrasound and MRI and especially MR-venography are essential for periinterventional imaging. Arteriovenous malformations are fast-flow vascular anomalies. They should be imaged with dedicated MR protocols, especially when extensive. CT with 4D perfusion imaging as well as time-resolved 3D MR-A allow multiplanar perfusion-based assessment of the multiple arterial inflow and venous drainage vessels of arterio-venous malformations. These imaging tools should be subject to intervention planning, as they can reduce procedure time significantly. Fast-flow vascular tumors like hemangiomas should be worked up with ultrasound, including color-coded duplex sonography, MRI and transcatheter angiography in case of a therapeutic approach. In combined malformation syndromes, radiological imaging has to be adapted according to the dominant underlying vessels and their flow dynamics. Conclusion Guide to evaluation of flow dynamics in peripheral vascular anomalies, involving vascular malformations and vascular tumors with the intention to facilitate selection of periinterventional imaging modalities and diagnostic and therapeutic approach to vascular anomalies. Key Points:  Citation Format

scholarly journals Responsiveness of quality‐of‐life measures in patients with peripheral vascular malformations: the OVAMA project

2019 ◽  
Vol 182 (6) ◽  
pp. 1395-1403 ◽  
Author(s):  
M.M. Lokhorst ◽  
S.E.R. Horbach ◽  
M. Waner ◽  
T.M. O ◽  
C.J.M. Vleuten ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Vascular Malformations ◽  
Peripheral Vascular ◽  
Quality Of Life Measures

Long-term Patient Satisfaction after Percutaneous Treatment of Peripheral Vascular Malformations

Radiology ◽  
2009 ◽  
Vol 251 (3) ◽  
pp. 926-932 ◽  
Author(s):  
Edwin van der Linden ◽  
Peter M. T. Pattynama ◽  
Birthe C. Heeres ◽  
Sylvia C. de Jong ◽  
Wim C. J. Hop ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Vascular Malformations ◽  
Percutaneous Treatment ◽  
Peripheral Vascular

Treatment of peripheral vascular malformations – preliminary single-centre experience

2015 ◽  
Vol 28 (2) ◽  
pp. 120-123
Author(s):  
Michał Sojka ◽  
Tomasz Jargiełło ◽  
Krzysztof Pyra ◽  
Anna Drelich-Zbroja ◽  
Katarzyna Wojtal ◽  
...  
Keyword(s):  
Vascular Malformations ◽  
Peripheral Vascular ◽  
Single Centre ◽  
Single Centre Experience

scholarly journals Novel use of arterial spin labelling in the imaging of peripheral vascular malformations

2020 ◽  
Vol 6 (3) ◽  
pp. 20200021
Author(s):  
Sanjeev Ramachandran ◽  
Jonathan Delf ◽  
Jocelyn Brookes ◽  
William Adair ◽  
Harjeet Rayt ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Vascular Malformation ◽  
Vascular Malformations ◽  
High Flow ◽  
Arterial Spin Labelling ◽  
Left Forearm ◽  
Peripheral Vascular ◽  
Perfusion Technique ◽  
Potential Benefits ◽  
Spin Labelling

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.

scholarly journals Patient Radiation Exposure from Embolo-Sclerotherapy of Peripheral Vascular Malformations

2020 ◽  
Author(s):  
Leeying Giet ◽  
Nicholas Evans ◽  
Anthie Papadopoulou ◽  
Mohamed Khalifa ◽  
Janice Tsui ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Vascular Malformations ◽  
Peripheral Vascular ◽  
Patient Radiation Exposure
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