Many VAs are fully formed before birth and do not clinically present in a fashion typical of infantile hemangiomas. Imaging characterization of the lesion and delineation of its extent are warranted. Arteriography Area of Interest There is no relevant literature to support the use of arteriography area of interest as the initial imaging modality for vascular lesion such as tumor or malformation. CT Area of Interest With IV Contrast There is no relevant literature to support the use of CT area of interest with IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. CT Area of Interest Without and With IV Contrast There is no relevant literature to support the use of CT area of interest without and with IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. CT Area of Interest Without IV Contrast There is no relevant literature to support the use of CT area of interest without IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. CTA and CTV Area of Interest With IV Contrast There is no relevant literature to support the use of CTA and CTV area of interest with IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. MRA and MRV Area of Interest Without and With IV Contrast Using contrast-enhanced MRA and MRV patterns of high or low signal intensity can help distinguish between low- flow and fast-flow VMs. In a study by van Rijswijk et al [29], they describe a 95% specificity and 83% sensitivity in differentiating venous and nonvenous malformations using dynamic contrast-enhanced MRA. Dynamic 4-D MRA with IV contrast may be used to detect the presence of arteriovenous microshunts in VMs, which have been found to be associated with the presence of phleboliths [30].
Soft Tissue Vascular Anomalies Vascular Malformations and Infantile Vascular Tumors Non CNS Child. Many VAs are fully formed before birth and do not clinically present in a fashion typical of infantile hemangiomas. Imaging characterization of the lesion and delineation of its extent are warranted. Arteriography Area of Interest There is no relevant literature to support the use of arteriography area of interest as the initial imaging modality for vascular lesion such as tumor or malformation. CT Area of Interest With IV Contrast There is no relevant literature to support the use of CT area of interest with IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. CT Area of Interest Without and With IV Contrast There is no relevant literature to support the use of CT area of interest without and with IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. CT Area of Interest Without IV Contrast There is no relevant literature to support the use of CT area of interest without IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. CTA and CTV Area of Interest With IV Contrast There is no relevant literature to support the use of CTA and CTV area of interest with IV contrast as the initial imaging modality for vascular lesion such as tumor or malformation. MRA and MRV Area of Interest Without and With IV Contrast Using contrast-enhanced MRA and MRV patterns of high or low signal intensity can help distinguish between low- flow and fast-flow VMs. In a study by van Rijswijk et al [29], they describe a 95% specificity and 83% sensitivity in differentiating venous and nonvenous malformations using dynamic contrast-enhanced MRA. Dynamic 4-D MRA with IV contrast may be used to detect the presence of arteriovenous microshunts in VMs, which have been found to be associated with the presence of phleboliths [30].