8%)   • Antiplatelet drugs = 247 (32.5%)   • Both anticoagulation and antiplatelet drugs = 130 (17.1%)   • Stent and/or embolization = 57 (7.5%) 5. How would you manage a patient with

intraluminal thrombus and no related neurological symptoms?   • Thrombolytics = 47 (6.2%)   • Heparin and/or warfarin = 500 (65.7%)   • Antiplatelet drugs = 174 (22.9%)   • None of the above = 40 (5.3%) 6. Should asymptomatic traumatic dissections and traumatic aneurysms be treated with endovascular techniques, such as stenting and/or embolization?   • Yes = 158 (20.7%)   • No = 211 (27.7%)   • Only if there is worsening of the lesion on follow-up imaging = 394 (51.6%) The most common preferred method of imaging was computed tomographic angiography (CTA, 22.8%), followed by MRI/MRA (22.8%) and catheter angiography (15.0%). The most common preferred treatment was anticoagulation (42.8%) and antiplatelet drugs (32.5%). Regarding management of a patient with ARN-509 intraluminal thrombus and no related symptoms, the most common choice was heparin and/or warfarin (65.7%), followed by antiplatelet drugs (22.9%) and thrombolytics (6.2%). Some 20.7% of the respondents recommend treatment of asymptomatic dissections and traumatic aneurysms with endovascular techniques, while 2.7% would not and 51.6% would do so only if there were worsening of the lesion on follow-up imaging. Analysis by specialty For each question there was a statistically

significant association between response and medical specialty (all P < 0.00005 for both chi-square test and Fisher's exact test). The medical specialties with the greatest annual number of TCVI cases seen per respondent learn more were interventional radiologists, followed by trauma surgeons and neurologists (Table 3). Regarding imaging, CTA was favored

by a majority of respondents Adenosine in each specialty, although 39.0% of neurologists preferred MRI/MRA (Table 4). Some 26.7% of interventional radiologists and 21.8% of neurosurgeons preferred catheter angiography. Anticoagulation was the most common preferred treatment among neurosurgeons, vascular surgeons, and neurologists, whereas antiplatelet agents were most commonly favored among trauma surgeons and general surgeons (Table 5). A minority of respondents in each specialty, ranging from 3.0% to 10.7%, preferred stenting and/or embolization. Responses to questions about treatment of asymptomatic lesions are listed in Table 6. For patients with an asymptomatic intraluminal thrombus, the majority of respondents in all specialties preferred heparin and/or warfarin; antiplatelet agents were the next most commonly favored treatment, followed by thrombolytics. Regarding asymptomatic dissections and traumatic aneurysms, the most common opinion among all specialties was that endovascular techniques should either not be used or they should be reserved for lesions that are found to worsen on follow-up imaging.