CT Area of Interest With IV Contrast Contrast-enhanced CT may provide further anatomic definition of a VM after US in other anatomies, aiding in visualizing phleboliths, thrombus, osseous changes such as erosion or findings related to overgrowth syndromes, and soft tissue involvement, especially in defining the deep or infiltrative extent of a VA [39-41]. CT Area of Interest Without and With IV Contrast There is insufficient literature reviewing the efficacy of CT area of interest without and with IV contrast in this clinical scenario. CT of the chest without and with IV contrast has been used for diagnosis in patients with pulmonary arteriovenous malformations (PAVMs), which are seen in children with hereditary hemorrhagic telangiectasia (HHT), as a follow- up examination for the depiction of precise anatomy of simple and some complex lesions, after initial screening, which may be performed using transthoracic contrast echocardiography, which confirms the presence of a suspected shunt [42]. Both phases of the CT examination may provide important information in the diagnosis of PAVM [42]. Contrast-enhanced CT may provide further anatomic definition of a VM after US in other anatomies, aiding in visualizing phleboliths, thrombus, osseous changes such as erosion or findings related to overgrowth syndromes, and soft tissue involvement, especially in defining the deep or infiltrative extent of a VA [39-41]. CT Area of Interest Without IV Contrast There is no relevant literature reviewing the efficacy of noncontrast enhanced CT evaluation of VM. CT without IV contrast is limited in diagnosis of soft tissue and solid organ VMs and VTs because all structures and tissues show homogenous and similar attenuation, which obscures findings or does not allow characterization of the extent of abnormalities.
Soft Tissue Vascular Anomalies Vascular Malformations and Infantile Vascular Tumors Non CNS Child. CT Area of Interest With IV Contrast Contrast-enhanced CT may provide further anatomic definition of a VM after US in other anatomies, aiding in visualizing phleboliths, thrombus, osseous changes such as erosion or findings related to overgrowth syndromes, and soft tissue involvement, especially in defining the deep or infiltrative extent of a VA [39-41]. CT Area of Interest Without and With IV Contrast There is insufficient literature reviewing the efficacy of CT area of interest without and with IV contrast in this clinical scenario. CT of the chest without and with IV contrast has been used for diagnosis in patients with pulmonary arteriovenous malformations (PAVMs), which are seen in children with hereditary hemorrhagic telangiectasia (HHT), as a follow- up examination for the depiction of precise anatomy of simple and some complex lesions, after initial screening, which may be performed using transthoracic contrast echocardiography, which confirms the presence of a suspected shunt [42]. Both phases of the CT examination may provide important information in the diagnosis of PAVM [42]. Contrast-enhanced CT may provide further anatomic definition of a VM after US in other anatomies, aiding in visualizing phleboliths, thrombus, osseous changes such as erosion or findings related to overgrowth syndromes, and soft tissue involvement, especially in defining the deep or infiltrative extent of a VA [39-41]. CT Area of Interest Without IV Contrast There is no relevant literature reviewing the efficacy of noncontrast enhanced CT evaluation of VM. CT without IV contrast is limited in diagnosis of soft tissue and solid organ VMs and VTs because all structures and tissues show homogenous and similar attenuation, which obscures findings or does not allow characterization of the extent of abnormalities.