Pub Date : 2022-09-01DOI: 10.1177/15443167221120628
{"title":"Transcranial Color-Coded Doppler Cerebral Hemodynamics Following Aerobic Exercise Training: Outcomes From a Pilot Randomized Clinical Trial for CME credit September 2022","authors":"","doi":"10.1177/15443167221120628","DOIUrl":"https://doi.org/10.1177/15443167221120628","url":null,"abstract":"","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"134 - 134"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46725724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-01DOI: 10.1177/15443167221114794
David L. Dawson
{"title":"Ultrasound Physics and Instrumentation, Sixth Edition by Frank R. Miele","authors":"David L. Dawson","doi":"10.1177/15443167221114794","DOIUrl":"https://doi.org/10.1177/15443167221114794","url":null,"abstract":"","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"107 - 109"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49537337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-13DOI: 10.1177/15443167221115217
change and 608 (71.5%) showed no change in cate-gorization; left carotid—228 (27%) showed a change and 622 (73%) showed no change. All changes were from the 50%-69% range to < 50%. Analysis using ICA/CCA ratios showed reas-signment of 53 (22% of changed, 6% of total cohort) patients to post-procedure. paired to analyze the difference between pre-stent waveforms 2 groups were significantly (
{"title":"Society for Vascular Ultrasound Abstracts Selected for the D. E. Strandness Scientific and Clinical Papers Session Presented at the SVU 2022 Annual Conference","authors":"","doi":"10.1177/15443167221115217","DOIUrl":"https://doi.org/10.1177/15443167221115217","url":null,"abstract":"change and 608 (71.5%) showed no change in cate-gorization; left carotid—228 (27%) showed a change and 622 (73%) showed no change. All changes were from the 50%-69% range to < 50%. Analysis using ICA/CCA ratios showed reas-signment of 53 (22% of changed, 6% of total cohort) patients to post-procedure. paired to analyze the difference between pre-stent waveforms 2 groups were significantly (","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"122 - 125"},"PeriodicalIF":0.0,"publicationDate":"2022-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48773529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-29DOI: 10.1177/15443167221095168
A. Al-Sabbagh, S. I. Essa, A. Saleh
Age, hypertension, and diabetes can cause significant alterations in arterial structure and function, including changes in lumen diameter (LD), intimal-medial thickness (IMT), flow velocities, and arterial compliance. These are also considered risk markers of atherosclerosis and cerebrovascular disease. A difference between right and left carotid artery blood flow and IMT has been reported by some researchers, and a difference in the incidence of nonlacunar stroke has been reported between the right and left brain hemispheres. The aim of this study was to determine whether there are differences between the right and left common carotid arteries and internal carotid arteries in patients with hypertension and diabetes for 2 age groups. We studied 250 patients with both diabetes and hypertension. Patients were divided into 2 age groups with the old age group being 56 to 75 years and the young age group 35 to 55 years. The bilateral common carotid and internal carotid arteries were evaluated with B-mode ultrasound and Doppler examinations. The LD and IMT were measured for both common carotid arteries, and spectral waveform parameters and indices were recorded for both internal carotid arteries. The difference in LD between the left and right common carotid arteries for the old age group was 11.64% and for the young age group was 6.42%, with significant P values of <.05 for both age groups. The difference in IMT between the left and right common carotid arteries was 18.27% in the old age group compared with 15.38% in the young age group, with significant P values of <.05. There was a difference in peak systolic velocity between the left and right internal carotid arteries of 4.85% in the old age group which was not significant, compared with 14.28% in the young age group with a significant P value <.05, whereas the difference in end-diastolic velocity between the left and right internal carotid arteries was not significant for both age groups. Differences between the right and left internal carotid arteries for resistive index, pulsatility index, and pressure gradient were significant only in the young age group. We found significant differences between the right and left common carotid and internal carotid arteries in patients with diabetes and hypertension which were more prominent in the young age group. Values for common carotid IMT and LD were significantly higher in the left common carotid artery versus the right common carotid artery in both age groups. Differences between the 2 carotid sides may be attributed to anatomic variations in the common carotid artery origins which lead to differences in stress between the 2 sides.
{"title":"A Comparative Study of the Right and Left Carotid Arteries in Relation to Age for Patients with Diabetes and Hypertension for CME credit September 2022","authors":"A. Al-Sabbagh, S. I. Essa, A. Saleh","doi":"10.1177/15443167221095168","DOIUrl":"https://doi.org/10.1177/15443167221095168","url":null,"abstract":"Age, hypertension, and diabetes can cause significant alterations in arterial structure and function, including changes in lumen diameter (LD), intimal-medial thickness (IMT), flow velocities, and arterial compliance. These are also considered risk markers of atherosclerosis and cerebrovascular disease. A difference between right and left carotid artery blood flow and IMT has been reported by some researchers, and a difference in the incidence of nonlacunar stroke has been reported between the right and left brain hemispheres. The aim of this study was to determine whether there are differences between the right and left common carotid arteries and internal carotid arteries in patients with hypertension and diabetes for 2 age groups. We studied 250 patients with both diabetes and hypertension. Patients were divided into 2 age groups with the old age group being 56 to 75 years and the young age group 35 to 55 years. The bilateral common carotid and internal carotid arteries were evaluated with B-mode ultrasound and Doppler examinations. The LD and IMT were measured for both common carotid arteries, and spectral waveform parameters and indices were recorded for both internal carotid arteries. The difference in LD between the left and right common carotid arteries for the old age group was 11.64% and for the young age group was 6.42%, with significant P values of <.05 for both age groups. The difference in IMT between the left and right common carotid arteries was 18.27% in the old age group compared with 15.38% in the young age group, with significant P values of <.05. There was a difference in peak systolic velocity between the left and right internal carotid arteries of 4.85% in the old age group which was not significant, compared with 14.28% in the young age group with a significant P value <.05, whereas the difference in end-diastolic velocity between the left and right internal carotid arteries was not significant for both age groups. Differences between the right and left internal carotid arteries for resistive index, pulsatility index, and pressure gradient were significant only in the young age group. We found significant differences between the right and left common carotid and internal carotid arteries in patients with diabetes and hypertension which were more prominent in the young age group. Values for common carotid IMT and LD were significantly higher in the left common carotid artery versus the right common carotid artery in both age groups. Differences between the 2 carotid sides may be attributed to anatomic variations in the common carotid artery origins which lead to differences in stress between the 2 sides.","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"135 - 135"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42332521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-27DOI: 10.1177/15443167221113867
A. Vo, Thanh Van Nguyen, S. Kieu, An Quang Kieu, Kha Tan Huynh, Quynh Ngoc Hoa Nguyen, Truc T. T. Nguyen, Tien Cong Nguyen
The global prevalence of chronic kidney disease (CKD) continues to increase, with the arteriovenous fistula (AVF) as the most preferred vascular access for hemodialysis. Whether routine preoperative ultrasound mapping improves the outcome of AVF formation compared with clinical examination alone remains controversial. This retrospective study included patients undergoing AVF surgery with and without preoperative ultrasound at our center between September 2017 and August 2020. Outcome measures included AVF early and mid-term outcome. Cox regression analysis was performed to identify independent predictors of favorable AVF outcome. A total of 158 patients received an AVF during the study period. Both groups with (n = 79) and without (n = 79) ultrasound mapping were similar regarding baseline characteristics (age, sex, comorbidities). Patency rates were comparable between the 2 groups at 30 days, 3 months, and 6 months after AVF surgery, although there was a trend toward more favorable outcome for the mapping group ( P = .07). Kaplan-Meier analysis showed that at the end of study, the ultrasound mapping group had a higher mid-term patency rate; however, the improvement was not significant ( P = .07). Cox regression analysis did not reveal age, gender, comorbidities, and ultrasound as predictors of AVF survival. Our study did not find a significant benefit from routine preoperative ultrasound mapping in creating AVFs for hemodialysis. Further well-designed and adequately powered trials are needed to demonstrate the beneficial role of routine preoperative ultrasound mapping for vascular access in CKD coupled with clinical evaluation in short- and long-term AVF outcome.
{"title":"Revisiting the Role of Ultrasound Mapping in Arteriovenous Fistula Formation: A Single-Center Experience for CME Credit December 2022","authors":"A. Vo, Thanh Van Nguyen, S. Kieu, An Quang Kieu, Kha Tan Huynh, Quynh Ngoc Hoa Nguyen, Truc T. T. Nguyen, Tien Cong Nguyen","doi":"10.1177/15443167221113867","DOIUrl":"https://doi.org/10.1177/15443167221113867","url":null,"abstract":"The global prevalence of chronic kidney disease (CKD) continues to increase, with the arteriovenous fistula (AVF) as the most preferred vascular access for hemodialysis. Whether routine preoperative ultrasound mapping improves the outcome of AVF formation compared with clinical examination alone remains controversial. This retrospective study included patients undergoing AVF surgery with and without preoperative ultrasound at our center between September 2017 and August 2020. Outcome measures included AVF early and mid-term outcome. Cox regression analysis was performed to identify independent predictors of favorable AVF outcome. A total of 158 patients received an AVF during the study period. Both groups with (n = 79) and without (n = 79) ultrasound mapping were similar regarding baseline characteristics (age, sex, comorbidities). Patency rates were comparable between the 2 groups at 30 days, 3 months, and 6 months after AVF surgery, although there was a trend toward more favorable outcome for the mapping group ( P = .07). Kaplan-Meier analysis showed that at the end of study, the ultrasound mapping group had a higher mid-term patency rate; however, the improvement was not significant ( P = .07). Cox regression analysis did not reveal age, gender, comorbidities, and ultrasound as predictors of AVF survival. Our study did not find a significant benefit from routine preoperative ultrasound mapping in creating AVFs for hemodialysis. Further well-designed and adequately powered trials are needed to demonstrate the beneficial role of routine preoperative ultrasound mapping for vascular access in CKD coupled with clinical evaluation in short- and long-term AVF outcome.","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"180 - 180"},"PeriodicalIF":0.0,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47544686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-13DOI: 10.1177/15443167221108512
P. Hutayanon, S. Muengtaweepongsa
Air embolic signals detected in the intracranial arteries using transcranial Doppler after intravenous injection of agitated saline bubbles indicate right-to-left cardiac shunting. They prove that emboli from venous sites can bypass the lungs and flow to the intracranial arteries. The Valsalva maneuver immediately after an intravenous injection of agitated saline bubbles helps the air bubbles pass through the shunt. If the air embolic signal appears in the intracranial arteries without the Valsalva maneuver, the shunting is highly significant to the etiology of embolism. Transcranial Doppler to detect air embolic signals after intravenous injection of agitated saline bubbles may not be mandatory to diagnose and treat patent foramen ovale; however, as with echocardiography, transcranial Doppler is considered a noninvasive, convenient, and low-cost investigation. The test should be helpful to confirm the significance of the corresponding patent foramen ovale.
{"title":"The Role of Transcranial Doppler in Detecting Patent Foramen Ovale","authors":"P. Hutayanon, S. Muengtaweepongsa","doi":"10.1177/15443167221108512","DOIUrl":"https://doi.org/10.1177/15443167221108512","url":null,"abstract":"Air embolic signals detected in the intracranial arteries using transcranial Doppler after intravenous injection of agitated saline bubbles indicate right-to-left cardiac shunting. They prove that emboli from venous sites can bypass the lungs and flow to the intracranial arteries. The Valsalva maneuver immediately after an intravenous injection of agitated saline bubbles helps the air bubbles pass through the shunt. If the air embolic signal appears in the intracranial arteries without the Valsalva maneuver, the shunting is highly significant to the etiology of embolism. Transcranial Doppler to detect air embolic signals after intravenous injection of agitated saline bubbles may not be mandatory to diagnose and treat patent foramen ovale; however, as with echocardiography, transcranial Doppler is considered a noninvasive, convenient, and low-cost investigation. The test should be helpful to confirm the significance of the corresponding patent foramen ovale.","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"47 1","pages":"33 - 39"},"PeriodicalIF":0.0,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41345990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-07DOI: 10.1177/15443167221108510
R. Bacha, S. Amir Gilani, Iqra Manzoor
Preocclusive stenosis of the common carotid artery is a rare and potentially life-threatening entity, and the early recognition of associated internal and external carotid artery patency is important for the management plan. The patient in this case report was sent for a thyroid ultrasound for complaints of neck pain, voice change, and dysphagia, and a preocclusive stenosis of the left common carotid artery was found. Multiple collateral pathways had developed to supply blood flow to the left internal carotid artery, and there was retrograde flow in the external carotid artery and antegrade flow in the internal carotid artery. Collaterals from the left thyrocervical trunk were supplying the superior thyroid artery which supplied the external carotid artery and finally the internal carotid artery through the carotid bulb. Doppler ultrasound is valuable in the identification of preocclusive common carotid artery stenosis and mapping of collateral pathways.
{"title":"Doppler Study of the Left Common Carotid Artery With Preocclusive Stenosis","authors":"R. Bacha, S. Amir Gilani, Iqra Manzoor","doi":"10.1177/15443167221108510","DOIUrl":"https://doi.org/10.1177/15443167221108510","url":null,"abstract":"Preocclusive stenosis of the common carotid artery is a rare and potentially life-threatening entity, and the early recognition of associated internal and external carotid artery patency is important for the management plan. The patient in this case report was sent for a thyroid ultrasound for complaints of neck pain, voice change, and dysphagia, and a preocclusive stenosis of the left common carotid artery was found. Multiple collateral pathways had developed to supply blood flow to the left internal carotid artery, and there was retrograde flow in the external carotid artery and antegrade flow in the internal carotid artery. Collaterals from the left thyrocervical trunk were supplying the superior thyroid artery which supplied the external carotid artery and finally the internal carotid artery through the carotid bulb. Doppler ultrasound is valuable in the identification of preocclusive common carotid artery stenosis and mapping of collateral pathways.","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"129 - 133"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44071719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-06DOI: 10.1177/15443167221107705
T. Nawata, Natsu Kinoshita, T. Ariyoshi, Y. Wada, M. Yano
A 68-year-old man was admitted to the hospital with acute onset of exertional chest pain. The patient had a history of a percutaneous coronary intervention and rheumatoid arthritis, for which he was taking aspirin (100 mg) and prednisolone (5 mg) on a daily basis. Coronary angiography did not reveal any coronary artery stenosis; however, contrast-enhanced computed tomography (CE-CT) revealed bilateral pulmonary emboli and bilateral deep venous thrombosis (DVT) involving the left popliteal vein and right soleal veins. In addition, splenic vein thrombosis was observed (Figure 1, Panel A-1, arrow). A vascular ultrasound examination was performed for the morphological evaluation of the splenic vein thrombosis. B-mode imaging revealed a poorly visualized structure with low brightness in the splenic vein (Figure 1, Panel A-2). Superb microvascular imaging (SMI) clearly showed a perfusion defect in the splenic vein (Figure 1, Panel A-3). Apixaban was administered to treat the multiple-site thrombosis. At the 1-month follow-up, CE-CT and vascular ultrasound examinations were repeated and confirmed the disappearance of the splenic vein thrombosis (Figure 2, Panel B-1, arrow; B-2, B-mode; and B-3, SMI). Vascular ultrasound has been widely used for assessing DVT. For splanchnic venous thrombosis, the usefulness of ultrasound evaluation in portal vein thrombosis has been reported.1 On the contrary, few studies have reported the use of ultrasound evaluation in splenic vein thrombosis.2 Superb microvascular imaging is a relatively new Doppler imaging technique which eliminates artifacts from tissue movement without reducing the vascular signal and enables better depiction of microvascularity and low-velocity blood flow compared with conventional ultrasonographic methods. Superb microvascular imaging can detect and display very slow blood flow signals in microvessels, which 1107705 JVUXXX10.1177/15443167221107705Journal for Vascular UltrasoundNawata et al research-article2022
{"title":"Usefulness of Ultrasonographic Superb Microvascular Imaging for Diagnosis and Management of Splenic Vein Thrombosis","authors":"T. Nawata, Natsu Kinoshita, T. Ariyoshi, Y. Wada, M. Yano","doi":"10.1177/15443167221107705","DOIUrl":"https://doi.org/10.1177/15443167221107705","url":null,"abstract":"A 68-year-old man was admitted to the hospital with acute onset of exertional chest pain. The patient had a history of a percutaneous coronary intervention and rheumatoid arthritis, for which he was taking aspirin (100 mg) and prednisolone (5 mg) on a daily basis. Coronary angiography did not reveal any coronary artery stenosis; however, contrast-enhanced computed tomography (CE-CT) revealed bilateral pulmonary emboli and bilateral deep venous thrombosis (DVT) involving the left popliteal vein and right soleal veins. In addition, splenic vein thrombosis was observed (Figure 1, Panel A-1, arrow). A vascular ultrasound examination was performed for the morphological evaluation of the splenic vein thrombosis. B-mode imaging revealed a poorly visualized structure with low brightness in the splenic vein (Figure 1, Panel A-2). Superb microvascular imaging (SMI) clearly showed a perfusion defect in the splenic vein (Figure 1, Panel A-3). Apixaban was administered to treat the multiple-site thrombosis. At the 1-month follow-up, CE-CT and vascular ultrasound examinations were repeated and confirmed the disappearance of the splenic vein thrombosis (Figure 2, Panel B-1, arrow; B-2, B-mode; and B-3, SMI). Vascular ultrasound has been widely used for assessing DVT. For splanchnic venous thrombosis, the usefulness of ultrasound evaluation in portal vein thrombosis has been reported.1 On the contrary, few studies have reported the use of ultrasound evaluation in splenic vein thrombosis.2 Superb microvascular imaging is a relatively new Doppler imaging technique which eliminates artifacts from tissue movement without reducing the vascular signal and enables better depiction of microvascularity and low-velocity blood flow compared with conventional ultrasonographic methods. Superb microvascular imaging can detect and display very slow blood flow signals in microvessels, which 1107705 JVUXXX10.1177/15443167221107705Journal for Vascular UltrasoundNawata et al research-article2022","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"177 - 178"},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41922248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-03DOI: 10.1177/15443167221098752
Erika Carrion, Kimberly Shaver, David Wedderman, C. Sales
A prominent portal vein collateral, detected on duplex examination, confirms the diagnosis of portal vein hypertension (PVHTN). We present a patient referred to the vascular laboratory for a portal vein duplex ultrasound (DUS) examination with elastography. The most significant finding was retrograde (hepatofugal) flow in a prominent portal vein collateral located immediately adjacent to the main portal vein. This DUS examination highlights the techniques that identify spontaneous portosystemic shunts, thus confirming the presence of PVHTN.
{"title":"Adjacent Portal Vein Collateral With Retrograde Flow","authors":"Erika Carrion, Kimberly Shaver, David Wedderman, C. Sales","doi":"10.1177/15443167221098752","DOIUrl":"https://doi.org/10.1177/15443167221098752","url":null,"abstract":"A prominent portal vein collateral, detected on duplex examination, confirms the diagnosis of portal vein hypertension (PVHTN). We present a patient referred to the vascular laboratory for a portal vein duplex ultrasound (DUS) examination with elastography. The most significant finding was retrograde (hepatofugal) flow in a prominent portal vein collateral located immediately adjacent to the main portal vein. This DUS examination highlights the techniques that identify spontaneous portosystemic shunts, thus confirming the presence of PVHTN.","PeriodicalId":52510,"journal":{"name":"Journal for Vascular Ultrasound","volume":"46 1","pages":"126 - 128"},"PeriodicalIF":0.0,"publicationDate":"2022-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47088990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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