Ziv Haskal - Academia.edu (original) (raw)

Papers by Ziv Haskal

Research paper thumbnail of Society of Interventional Radiology: Resource and Environment Recommended Standards for IR

Journal of vascular and interventional radiology : JVIR, Jan 6, 2017

Research paper thumbnail of Varicose veins: Pathophysiologic basis and hemodynamic effects

Research paper thumbnail of Editors� Recognition Award for Distinction in Reviewing 2009

Cardiovascular and Interventional Radiology, Oct 1, 2009

CVIR acknowledges and appreciates all of our contributing reviewers for another successful year. ... more CVIR acknowledges and appreciates all of our contributing reviewers for another successful year. In 2009, over 900 reviewers provided substantial scientific analysis of manuscripts submitted for publication in CardioVascular and Interventional Radiology. Several reviewers have emerged as this year's ''Distinguished Reviewers.'' These individuals have submitted more than 30 reviews (includes revision reviews) in the past year (maximum: 49 reviews!), and have averaged 15 days or less turnaround time (minimum: 6 days). Special recognition is presented to the following individuals.

Research paper thumbnail of Role of Biliary Stress Manometry after Biliary Stricture Dilation in Living Donor Liver Transplant Recipients

Journal of Vascular and Interventional Radiology, Feb 29, 2008

To report on the use of biliary manometry for determining treatment completion in living donor li... more To report on the use of biliary manometry for determining treatment completion in living donor liver transplant recipients. Twenty of 85 patients (24%) who underwent living donor liver transplantation developed postoperative anastomotic biliary strictures. Fifteen patients underwent transhepatic biliary drainage and percutaneous dilation. In 10 patients, biliary stress manometry was used to assess treatment adequacy after a mean of 2.5 dilation sessions occurring during a mean period of 62 days (range, 5-55 days). An intrabiliary pressure of less than 20-cm H2O after an escalating intrabiliary infusion to 1,200 mL per hour for 3 minutes was defined as the success threshold (in lieu of a capped external catheter "clinical trial"). There were no complications during the infusion study. In all 10 patients in whom manometry was successful, biliary catheters were removed. One patient (who underwent manometry and catheter removal after only one dilation session) required repeat intubation 7 weeks later. The remaining nine patients (90%) remained free of evidence of biliary obstruction at a mean of 8.4 months. With Kaplan-Meier survival analysis, the probability of biliary patency at 3, 6, and 12 months was 90%. This biliary stress manometry protocol offers a promising alternative to the catheter…

Research paper thumbnail of The Role of Transjugular Intrahepatic Portosystemic Shunt (TIPS) in the Management of Portal Hypertension: Update 2009

Research paper thumbnail of Trans jugular Intrahepatic Portosystemic Shunts in Hemodialysis-dependent Patients and Patients with Advanced Renal Insufficiency : Safety, Caution, and Encephalopathy

Journal of Vascular and Interventional Radiology, 2008

Research paper thumbnail of American Association for the Study of Liver Diseases Practice Guidelines: the role of transjugular intrahepatic portosystemic shunt creation in the management of portal hypertension

Journal of Vascular and Interventional Radiology Jvir, May 1, 2005

Research paper thumbnail of Transjugular Intrahepatic Portosystemic Shunt–related Arterial Injuries: Prospective Comparison of Large and Small-Gauge Needle Systems

Journal of Vascular and Interventional Radiology, 1995

Research paper thumbnail of Chronic venous insufficiency and varicose veins: Imaging evaluation and indications for intervention

Research paper thumbnail of Transjugular Intrahepatic Shunt Stenosis and Thrombosis: Shunt Biology and Stent-Grafts

Research paper thumbnail of Lower Extremity Peripheral Artery Disease

The AHA Guidelines and Scientific Statements Handbook, 2008

Research paper thumbnail of Embolotherapy of upper gastrointestinal

Techniques in Vascular and Interventional Radiology, 2000

Angiography is indicated for nonvariceal upper gastrointestinal hemorrhage that does not respond ... more Angiography is indicated for nonvariceal upper gastrointestinal hemorrhage that does not respond to medical or endoscopic therapy. Therapeutic options include vasopressin infusion and embolotherapy. Although initial studies showed a high early success rate with intra-arterial infusions of vasopressin, there is a high rate of recurrent hemorrhage. Embolotherapy, however, occludes the bleeding vessel and is less prone to rebleeding. The stomach is richly vascularized, allowing for the safe and appropriate use of embolic agents with a low risk of ischemia. This article outlines the techniques and results for controlling various causes of upper gastrointestinal hemorrhage.

Research paper thumbnail of Correspondence re: recanalization of an occluded intrahepatic portosystemic covered stent via the percutaneous transhepatic approach

Korean journal of radiology : official journal of the Korean Radiological Society

Research paper thumbnail of Chemoembolization of hepatocellular carcinoma with cisplatin, doxorubicin, mitomycin-C, ethiodol, and polyvinyl alcohol: prospective evaluation of response and survival in a U.S. population

Journal of vascular and interventional radiology : JVIR, 1999

To evaluate response and survival after hepatic chemoembolization with cisplatin, doxorubicin, mi... more To evaluate response and survival after hepatic chemoembolization with cisplatin, doxorubicin, mitomycin-C, Ethiodol, and polyvinyl alcohol in a U.S. population of patients with hepatocellular carcinoma. Thirty-eight consecutive patients were treated: 35% stage I, 62% stage II, 3% stage III. Fifty-one percent had cirrhosis. Chemoembolization was performed at approximately monthly intervals for one to seven sessions (mean, 2.2). Pretreatment and posttreatment cross-sectional imaging and alpha-fetoprotein (AFP) levels were obtained prospectively 1 month after treatment and then every 3 months. Thirty-day response was calculated by means of the the World Health Organization/Eastern Cooperative Oncology Group criteria. One patient was lost to follow-up. In seven patients, lesions became resectable after chemoembolization. Among 13 evaluable patients with initially elevated AFP level, 70% had a partial biologic response (>50% decrease in AFP), 15% had a minor response (25-50% decrease...

Research paper thumbnail of Recommendations for multimodal noninvasive and invasive screening for detection of extracranial venous abnormalities indicative of chronic cerebrospinal venous insufficiency: a position statement of the International Society for Neurovascular Disease

Journal of vascular and interventional radiology : JVIR, 2014

Under the auspices of the International Society for Neurovascular Disease (ISNVD), four expert pa... more Under the auspices of the International Society for Neurovascular Disease (ISNVD), four expert panel committees were created from the ISNVD membership between 2011 and 2012 to determine and standardize noninvasive and invasive imaging protocols for detection of extracranial venous abnormalities indicative of chronic cerebrospinal venous insufficiency (CCSVI). The committees created working groups on color Doppler ultrasound (US), magnetic resonance (MR) imaging, catheter venography (CV), and intravascular US. Each group organized a workshop focused on its assigned imaging modality. Non-ISNVD members from other societies were invited to contribute to the various workshops. More than 60 neurology, radiology, vascular surgery, and interventional radiology experts participated in these workshops and contributed to the development of standardized noninvasive and invasive imaging protocols for the detection of extracranial venous abnormalities indicative of CCSVI. This ISNVD position stat...

Research paper thumbnail of Gun-Sight, Not Shotgun, Nor Gun-Shot

CardioVascular and Interventional Radiology, 2014

Research paper thumbnail of Role of Biliary Stress Manometry after Biliary Stricture Dilation in Living Donor Liver Transplant Recipients

Journal of Vascular and Interventional Radiology, 2008

To report on the use of biliary manometry for determining treatment completion in living donor li... more To report on the use of biliary manometry for determining treatment completion in living donor liver transplant recipients. Twenty of 85 patients (24%) who underwent living donor liver transplantation developed postoperative anastomotic biliary strictures. Fifteen patients underwent transhepatic biliary drainage and percutaneous dilation. In 10 patients, biliary stress manometry was used to assess treatment adequacy after a mean of 2.5 dilation sessions occurring during a mean period of 62 days (range, 5-55 days). An intrabiliary pressure of less than 20-cm H2O after an escalating intrabiliary infusion to 1,200 mL per hour for 3 minutes was defined as the success threshold (in lieu of a capped external catheter "clinical trial"). There were no complications during the infusion study. In all 10 patients in whom manometry was successful, biliary catheters were removed. One patient (who underwent manometry and catheter removal after only one dilation session) required repeat intubation 7 weeks later. The remaining nine patients (90%) remained free of evidence of biliary obstruction at a mean of 8.4 months. With Kaplan-Meier survival analysis, the probability of biliary patency at 3, 6, and 12 months was 90%. This biliary stress manometry protocol offers a promising alternative to the catheter…

Research paper thumbnail of Interventional Radiology Peer, a Newly Developed Peer-Review Scoring System Designed for Interventional Radiology Practice

Journal of Vascular and Interventional Radiology, 2013

Existing diagnostic radiology peer-review systems do not address the specificities of interventio... more Existing diagnostic radiology peer-review systems do not address the specificities of interventional radiology (IR) practice. The purpose of this study was to assess the feasibility of a specifically developed interventional peer review method, IR Peer. Retrospective review of a prospectively encoded pilot database aimed at demonstrating the feasibility of IR Peer in a multiphysician practice was performed. This scoring system used morning peer review of selected IR cases from the previous day in the form of a five-item questionnaire and an ordinal answer scale that grades reviewers' agreement with imaging findings, procedural/technical management, early outcomes, and follow-up plan. Patient lists from IR Peer and morbidity and mortality (M&M) conferences were compared to evaluate the amount of overlap and capability of IR Peer to help detect adverse events (AEs). A total of 417 consecutive reviews of IR attending physician cases by peers were performed in 163 consecutive patients over 18 months, and 94% of cases were reviewed by two or three IR attending physicians. Each question was answered 99%-100% of the time. Answers showed disagreement in 10% of cases (2% by a single reviewer, 8% by several), most related to procedural technique. Overall AE incidence was 1.8%. IR Peer contributed 10.7% of cases to the M&M list. IR Peer is feasible, relevant, and easy to implement in a multiphysician IR practice. When used along with other quality-assurance processes, it might help in the detection of AEs for M&M; the latter will require further confirmatory research.

Research paper thumbnail of American Association for the Study of Liver Diseases Practice Guidelines: The Role of Transjugular Intrahepatic Portosystemic Shunt Creation in the Management of Portal Hypertension

Journal of Vascular and Interventional Radiology, 2005

Research paper thumbnail of The Effect of Initial Shunt Outflow Position on Patency of Transjugular Intrahepatic Portosystemic Shunts

Journal of Vascular and Interventional Radiology, 2004

It has been suggested that initial stent position in transjugular intrahepatic portosystemic shun... more It has been suggested that initial stent position in transjugular intrahepatic portosystemic shunts (TIPS) with relation to hepatic venous outflow is an important determinant of shunt patency. It was hypothesized that TIPS with the stent-implanted segments terminating in the hepatic vein (HV) have shorter primary unassisted shunt patency durations than TIPS with the stent-implanted segments extending to the hepatocaval junction. A consecutive group of 107 patients who underwent TIPS creation for variceal bleeding were retrospectively identified, and the angiographic images during initial TIPS creation were reviewed independently by two observers who were blinded to outcome. Primary unassisted patency was estimated in group A (TIPS terminating in the HV; n = 47) and group B (TIPS terminating at the hepatocaval junction; n = 60) with the Kaplan-Meier method, and the two groups were compared with the log-rank test. Patients who had less than 30 days of follow-up were excluded from the analysis. Among all 107 patients, primary unassisted patency rates at 3, 6, and 12 months were 91% +/- 4%, 74% +/- 6%, and 49% +/- 6%. TIPS were classified into group A or group B with high interobserver agreement (Cohen kappa = 0.98). At 12 months, the primary unassisted patency rate among the patients in group A was 36% +/- 10%, compared with 58% +/- 8% among the patients in group B (P =.017, log-rank test). Patients in group A were twice as likely to lose patency than patients in group B (95% CI of odds ratio, 1.2-4.5). Thirty-day mortality was similar between groups (15% vs 12%; P =.13). Initial stent position within the hepatic venous outflow is predictive of shunt patency, with TIPS extending to the hepatocaval junction having a longer lifespan than shunts terminating in the HV.

Research paper thumbnail of Society of Interventional Radiology: Resource and Environment Recommended Standards for IR

Journal of vascular and interventional radiology : JVIR, Jan 6, 2017

Research paper thumbnail of Varicose veins: Pathophysiologic basis and hemodynamic effects

Research paper thumbnail of Editors� Recognition Award for Distinction in Reviewing 2009

Cardiovascular and Interventional Radiology, Oct 1, 2009

CVIR acknowledges and appreciates all of our contributing reviewers for another successful year. ... more CVIR acknowledges and appreciates all of our contributing reviewers for another successful year. In 2009, over 900 reviewers provided substantial scientific analysis of manuscripts submitted for publication in CardioVascular and Interventional Radiology. Several reviewers have emerged as this year's ''Distinguished Reviewers.'' These individuals have submitted more than 30 reviews (includes revision reviews) in the past year (maximum: 49 reviews!), and have averaged 15 days or less turnaround time (minimum: 6 days). Special recognition is presented to the following individuals.

Research paper thumbnail of Role of Biliary Stress Manometry after Biliary Stricture Dilation in Living Donor Liver Transplant Recipients

Journal of Vascular and Interventional Radiology, Feb 29, 2008

To report on the use of biliary manometry for determining treatment completion in living donor li... more To report on the use of biliary manometry for determining treatment completion in living donor liver transplant recipients. Twenty of 85 patients (24%) who underwent living donor liver transplantation developed postoperative anastomotic biliary strictures. Fifteen patients underwent transhepatic biliary drainage and percutaneous dilation. In 10 patients, biliary stress manometry was used to assess treatment adequacy after a mean of 2.5 dilation sessions occurring during a mean period of 62 days (range, 5-55 days). An intrabiliary pressure of less than 20-cm H2O after an escalating intrabiliary infusion to 1,200 mL per hour for 3 minutes was defined as the success threshold (in lieu of a capped external catheter "clinical trial"). There were no complications during the infusion study. In all 10 patients in whom manometry was successful, biliary catheters were removed. One patient (who underwent manometry and catheter removal after only one dilation session) required repeat intubation 7 weeks later. The remaining nine patients (90%) remained free of evidence of biliary obstruction at a mean of 8.4 months. With Kaplan-Meier survival analysis, the probability of biliary patency at 3, 6, and 12 months was 90%. This biliary stress manometry protocol offers a promising alternative to the catheter…

Research paper thumbnail of The Role of Transjugular Intrahepatic Portosystemic Shunt (TIPS) in the Management of Portal Hypertension: Update 2009

Research paper thumbnail of Trans jugular Intrahepatic Portosystemic Shunts in Hemodialysis-dependent Patients and Patients with Advanced Renal Insufficiency : Safety, Caution, and Encephalopathy

Journal of Vascular and Interventional Radiology, 2008

Research paper thumbnail of American Association for the Study of Liver Diseases Practice Guidelines: the role of transjugular intrahepatic portosystemic shunt creation in the management of portal hypertension

Journal of Vascular and Interventional Radiology Jvir, May 1, 2005

Research paper thumbnail of Transjugular Intrahepatic Portosystemic Shunt–related Arterial Injuries: Prospective Comparison of Large and Small-Gauge Needle Systems

Journal of Vascular and Interventional Radiology, 1995

Research paper thumbnail of Chronic venous insufficiency and varicose veins: Imaging evaluation and indications for intervention

Research paper thumbnail of Transjugular Intrahepatic Shunt Stenosis and Thrombosis: Shunt Biology and Stent-Grafts

Research paper thumbnail of Lower Extremity Peripheral Artery Disease

The AHA Guidelines and Scientific Statements Handbook, 2008

Research paper thumbnail of Embolotherapy of upper gastrointestinal

Techniques in Vascular and Interventional Radiology, 2000

Angiography is indicated for nonvariceal upper gastrointestinal hemorrhage that does not respond ... more Angiography is indicated for nonvariceal upper gastrointestinal hemorrhage that does not respond to medical or endoscopic therapy. Therapeutic options include vasopressin infusion and embolotherapy. Although initial studies showed a high early success rate with intra-arterial infusions of vasopressin, there is a high rate of recurrent hemorrhage. Embolotherapy, however, occludes the bleeding vessel and is less prone to rebleeding. The stomach is richly vascularized, allowing for the safe and appropriate use of embolic agents with a low risk of ischemia. This article outlines the techniques and results for controlling various causes of upper gastrointestinal hemorrhage.

Research paper thumbnail of Correspondence re: recanalization of an occluded intrahepatic portosystemic covered stent via the percutaneous transhepatic approach

Korean journal of radiology : official journal of the Korean Radiological Society

Research paper thumbnail of Chemoembolization of hepatocellular carcinoma with cisplatin, doxorubicin, mitomycin-C, ethiodol, and polyvinyl alcohol: prospective evaluation of response and survival in a U.S. population

Journal of vascular and interventional radiology : JVIR, 1999

To evaluate response and survival after hepatic chemoembolization with cisplatin, doxorubicin, mi... more To evaluate response and survival after hepatic chemoembolization with cisplatin, doxorubicin, mitomycin-C, Ethiodol, and polyvinyl alcohol in a U.S. population of patients with hepatocellular carcinoma. Thirty-eight consecutive patients were treated: 35% stage I, 62% stage II, 3% stage III. Fifty-one percent had cirrhosis. Chemoembolization was performed at approximately monthly intervals for one to seven sessions (mean, 2.2). Pretreatment and posttreatment cross-sectional imaging and alpha-fetoprotein (AFP) levels were obtained prospectively 1 month after treatment and then every 3 months. Thirty-day response was calculated by means of the the World Health Organization/Eastern Cooperative Oncology Group criteria. One patient was lost to follow-up. In seven patients, lesions became resectable after chemoembolization. Among 13 evaluable patients with initially elevated AFP level, 70% had a partial biologic response (>50% decrease in AFP), 15% had a minor response (25-50% decrease...

Research paper thumbnail of Recommendations for multimodal noninvasive and invasive screening for detection of extracranial venous abnormalities indicative of chronic cerebrospinal venous insufficiency: a position statement of the International Society for Neurovascular Disease

Journal of vascular and interventional radiology : JVIR, 2014

Under the auspices of the International Society for Neurovascular Disease (ISNVD), four expert pa... more Under the auspices of the International Society for Neurovascular Disease (ISNVD), four expert panel committees were created from the ISNVD membership between 2011 and 2012 to determine and standardize noninvasive and invasive imaging protocols for detection of extracranial venous abnormalities indicative of chronic cerebrospinal venous insufficiency (CCSVI). The committees created working groups on color Doppler ultrasound (US), magnetic resonance (MR) imaging, catheter venography (CV), and intravascular US. Each group organized a workshop focused on its assigned imaging modality. Non-ISNVD members from other societies were invited to contribute to the various workshops. More than 60 neurology, radiology, vascular surgery, and interventional radiology experts participated in these workshops and contributed to the development of standardized noninvasive and invasive imaging protocols for the detection of extracranial venous abnormalities indicative of CCSVI. This ISNVD position stat...

Research paper thumbnail of Gun-Sight, Not Shotgun, Nor Gun-Shot

CardioVascular and Interventional Radiology, 2014

Research paper thumbnail of Role of Biliary Stress Manometry after Biliary Stricture Dilation in Living Donor Liver Transplant Recipients

Journal of Vascular and Interventional Radiology, 2008

To report on the use of biliary manometry for determining treatment completion in living donor li... more To report on the use of biliary manometry for determining treatment completion in living donor liver transplant recipients. Twenty of 85 patients (24%) who underwent living donor liver transplantation developed postoperative anastomotic biliary strictures. Fifteen patients underwent transhepatic biliary drainage and percutaneous dilation. In 10 patients, biliary stress manometry was used to assess treatment adequacy after a mean of 2.5 dilation sessions occurring during a mean period of 62 days (range, 5-55 days). An intrabiliary pressure of less than 20-cm H2O after an escalating intrabiliary infusion to 1,200 mL per hour for 3 minutes was defined as the success threshold (in lieu of a capped external catheter "clinical trial"). There were no complications during the infusion study. In all 10 patients in whom manometry was successful, biliary catheters were removed. One patient (who underwent manometry and catheter removal after only one dilation session) required repeat intubation 7 weeks later. The remaining nine patients (90%) remained free of evidence of biliary obstruction at a mean of 8.4 months. With Kaplan-Meier survival analysis, the probability of biliary patency at 3, 6, and 12 months was 90%. This biliary stress manometry protocol offers a promising alternative to the catheter…

Research paper thumbnail of Interventional Radiology Peer, a Newly Developed Peer-Review Scoring System Designed for Interventional Radiology Practice

Journal of Vascular and Interventional Radiology, 2013

Existing diagnostic radiology peer-review systems do not address the specificities of interventio... more Existing diagnostic radiology peer-review systems do not address the specificities of interventional radiology (IR) practice. The purpose of this study was to assess the feasibility of a specifically developed interventional peer review method, IR Peer. Retrospective review of a prospectively encoded pilot database aimed at demonstrating the feasibility of IR Peer in a multiphysician practice was performed. This scoring system used morning peer review of selected IR cases from the previous day in the form of a five-item questionnaire and an ordinal answer scale that grades reviewers' agreement with imaging findings, procedural/technical management, early outcomes, and follow-up plan. Patient lists from IR Peer and morbidity and mortality (M&M) conferences were compared to evaluate the amount of overlap and capability of IR Peer to help detect adverse events (AEs). A total of 417 consecutive reviews of IR attending physician cases by peers were performed in 163 consecutive patients over 18 months, and 94% of cases were reviewed by two or three IR attending physicians. Each question was answered 99%-100% of the time. Answers showed disagreement in 10% of cases (2% by a single reviewer, 8% by several), most related to procedural technique. Overall AE incidence was 1.8%. IR Peer contributed 10.7% of cases to the M&M list. IR Peer is feasible, relevant, and easy to implement in a multiphysician IR practice. When used along with other quality-assurance processes, it might help in the detection of AEs for M&M; the latter will require further confirmatory research.

Research paper thumbnail of American Association for the Study of Liver Diseases Practice Guidelines: The Role of Transjugular Intrahepatic Portosystemic Shunt Creation in the Management of Portal Hypertension

Journal of Vascular and Interventional Radiology, 2005

Research paper thumbnail of The Effect of Initial Shunt Outflow Position on Patency of Transjugular Intrahepatic Portosystemic Shunts

Journal of Vascular and Interventional Radiology, 2004

It has been suggested that initial stent position in transjugular intrahepatic portosystemic shun... more It has been suggested that initial stent position in transjugular intrahepatic portosystemic shunts (TIPS) with relation to hepatic venous outflow is an important determinant of shunt patency. It was hypothesized that TIPS with the stent-implanted segments terminating in the hepatic vein (HV) have shorter primary unassisted shunt patency durations than TIPS with the stent-implanted segments extending to the hepatocaval junction. A consecutive group of 107 patients who underwent TIPS creation for variceal bleeding were retrospectively identified, and the angiographic images during initial TIPS creation were reviewed independently by two observers who were blinded to outcome. Primary unassisted patency was estimated in group A (TIPS terminating in the HV; n = 47) and group B (TIPS terminating at the hepatocaval junction; n = 60) with the Kaplan-Meier method, and the two groups were compared with the log-rank test. Patients who had less than 30 days of follow-up were excluded from the analysis. Among all 107 patients, primary unassisted patency rates at 3, 6, and 12 months were 91% +/- 4%, 74% +/- 6%, and 49% +/- 6%. TIPS were classified into group A or group B with high interobserver agreement (Cohen kappa = 0.98). At 12 months, the primary unassisted patency rate among the patients in group A was 36% +/- 10%, compared with 58% +/- 8% among the patients in group B (P =.017, log-rank test). Patients in group A were twice as likely to lose patency than patients in group B (95% CI of odds ratio, 1.2-4.5). Thirty-day mortality was similar between groups (15% vs 12%; P =.13). Initial stent position within the hepatic venous outflow is predictive of shunt patency, with TIPS extending to the hepatocaval junction having a longer lifespan than shunts terminating in the HV.