The Experts below are selected from a list of 60 Experts worldwide ranked by ideXlab platform

Seong Jong Yun - One of the best experts on this subject based on the ideXlab platform.

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal Radiology, 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS. Methods From January 2014 to April 2015, 216 patients who underwent initial urographic CT were included. Initially, 216 patients were categorized as “Nutcracker” or “normal,” based on the following CT criteria: (1) the presence of beak sign and (2) hilar-aortomesenteric left Renal vein diameter ratio >4. Patients who satisfied both of these criteria were diagnosed with Nutcracker. The Nutcracker was then divided into “NCS” and “asymptomatic NCP” based on the presence of characteristic symptoms. CT findings in sagittal and axial scans of corticomedullary phase were evaluated. Multivariate analysis was used to identify significant factors among 30 NCS, 51 asymptomatic NCP, and 135 normal patients. Diagnostic performance and threshold using receiver operating characteristic (ROC) curve were calculated. Results A total of 131 males and 85 females, with mean age of 38.6 years (range 18–89 years), were included. Multivariate analysis demonstrated superior mesenteric artery (SMA)-aortic angle ( p  

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal radiology (New York), 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS.

  • The roles of the liver and pancreas in Renal Nutcracker Syndrome.
    European journal of radiology, 2014
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Ji Su Kim
    Abstract:

    Abstract Introduction To assess the frequency and significance of presence of the liver and pancreas at the left Renal vein (LRV) level in patients with suspected Renal Nutcracker Syndrome (NCS). Materials and methods We included 101 patients with hematuria who underwent urography three-dimensional CT between April 2009 and November 2013. These patients were divided into NCS ( n  = 25) and non-NCS ( n  = 76) patients according to the following CT criteria: (1) the presence of beak sign and (2) hilar-aortomesenteric left Renal vein diameter ratio >4. Patients were grouped according to the presence of the liver and pancreas at the LRV: group LP (both liver and pancreas), group L (only liver), group P (only pancreas), and group O (neither liver nor pancreas). The difference in the frequencies of groups was analyzed between NCS and non-NCS patients. Multivariate analysis was used to determine the independent factors between NCS and non-NCS patients. Results The frequencies of group LP, group L, group P, and group O in NCS vs. non-NCS were 88% vs. 5.3% ( p p  = 0.75), 4.0% vs. 11.8% ( p  = 0.45), 4.0% vs. 80.3% ( p p  = 0.022), and group LP was an independent factor for the presence of NCS (odds ratio, 43.8; 95% confidence interval, 3.8–500.3; p Conclusion The presence of the liver and pancreas at the level of the LRV was frequently found in NCS and was the independent factor for NCS.

Sun Hwa Lee - One of the best experts on this subject based on the ideXlab platform.

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal Radiology, 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS. Methods From January 2014 to April 2015, 216 patients who underwent initial urographic CT were included. Initially, 216 patients were categorized as “Nutcracker” or “normal,” based on the following CT criteria: (1) the presence of beak sign and (2) hilar-aortomesenteric left Renal vein diameter ratio >4. Patients who satisfied both of these criteria were diagnosed with Nutcracker. The Nutcracker was then divided into “NCS” and “asymptomatic NCP” based on the presence of characteristic symptoms. CT findings in sagittal and axial scans of corticomedullary phase were evaluated. Multivariate analysis was used to identify significant factors among 30 NCS, 51 asymptomatic NCP, and 135 normal patients. Diagnostic performance and threshold using receiver operating characteristic (ROC) curve were calculated. Results A total of 131 males and 85 females, with mean age of 38.6 years (range 18–89 years), were included. Multivariate analysis demonstrated superior mesenteric artery (SMA)-aortic angle ( p  

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal radiology (New York), 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS.

Deok Ho Nam - One of the best experts on this subject based on the ideXlab platform.

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal Radiology, 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS. Methods From January 2014 to April 2015, 216 patients who underwent initial urographic CT were included. Initially, 216 patients were categorized as “Nutcracker” or “normal,” based on the following CT criteria: (1) the presence of beak sign and (2) hilar-aortomesenteric left Renal vein diameter ratio >4. Patients who satisfied both of these criteria were diagnosed with Nutcracker. The Nutcracker was then divided into “NCS” and “asymptomatic NCP” based on the presence of characteristic symptoms. CT findings in sagittal and axial scans of corticomedullary phase were evaluated. Multivariate analysis was used to identify significant factors among 30 NCS, 51 asymptomatic NCP, and 135 normal patients. Diagnostic performance and threshold using receiver operating characteristic (ROC) curve were calculated. Results A total of 131 males and 85 females, with mean age of 38.6 years (range 18–89 years), were included. Multivariate analysis demonstrated superior mesenteric artery (SMA)-aortic angle ( p  

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal radiology (New York), 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS.

  • The roles of the liver and pancreas in Renal Nutcracker Syndrome.
    European journal of radiology, 2014
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Ji Su Kim
    Abstract:

    Abstract Introduction To assess the frequency and significance of presence of the liver and pancreas at the left Renal vein (LRV) level in patients with suspected Renal Nutcracker Syndrome (NCS). Materials and methods We included 101 patients with hematuria who underwent urography three-dimensional CT between April 2009 and November 2013. These patients were divided into NCS ( n  = 25) and non-NCS ( n  = 76) patients according to the following CT criteria: (1) the presence of beak sign and (2) hilar-aortomesenteric left Renal vein diameter ratio >4. Patients were grouped according to the presence of the liver and pancreas at the LRV: group LP (both liver and pancreas), group L (only liver), group P (only pancreas), and group O (neither liver nor pancreas). The difference in the frequencies of groups was analyzed between NCS and non-NCS patients. Multivariate analysis was used to determine the independent factors between NCS and non-NCS patients. Results The frequencies of group LP, group L, group P, and group O in NCS vs. non-NCS were 88% vs. 5.3% ( p p  = 0.75), 4.0% vs. 11.8% ( p  = 0.45), 4.0% vs. 80.3% ( p p  = 0.022), and group LP was an independent factor for the presence of NCS (odds ratio, 43.8; 95% confidence interval, 3.8–500.3; p Conclusion The presence of the liver and pancreas at the level of the LRV was frequently found in NCS and was the independent factor for NCS.

Jung Kyu Ryu - One of the best experts on this subject based on the ideXlab platform.

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal Radiology, 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS. Methods From January 2014 to April 2015, 216 patients who underwent initial urographic CT were included. Initially, 216 patients were categorized as “Nutcracker” or “normal,” based on the following CT criteria: (1) the presence of beak sign and (2) hilar-aortomesenteric left Renal vein diameter ratio >4. Patients who satisfied both of these criteria were diagnosed with Nutcracker. The Nutcracker was then divided into “NCS” and “asymptomatic NCP” based on the presence of characteristic symptoms. CT findings in sagittal and axial scans of corticomedullary phase were evaluated. Multivariate analysis was used to identify significant factors among 30 NCS, 51 asymptomatic NCP, and 135 normal patients. Diagnostic performance and threshold using receiver operating characteristic (ROC) curve were calculated. Results A total of 131 males and 85 females, with mean age of 38.6 years (range 18–89 years), were included. Multivariate analysis demonstrated superior mesenteric artery (SMA)-aortic angle ( p  

  • Discriminating Renal Nutcracker Syndrome from asymptomatic Nutcracker phenomenon using multidetector computed tomography
    Abdominal radiology (New York), 2016
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Jung Min Lee, Sun Hwa Lee
    Abstract:

    Purpose To retrospectively evaluate the ability of computed tomographic (CT) findings to discriminate Nutcracker Syndrome (NCS) from asymptomatic Nutcracker phenomenon (NCP) and to investigate the diagnostic value of CT findings in diagnosis of NCS.

  • The roles of the liver and pancreas in Renal Nutcracker Syndrome.
    European journal of radiology, 2014
    Co-Authors: Seong Jong Yun, Deok Ho Nam, Jung Kyu Ryu, Ji Su Kim
    Abstract:

    Abstract Introduction To assess the frequency and significance of presence of the liver and pancreas at the left Renal vein (LRV) level in patients with suspected Renal Nutcracker Syndrome (NCS). Materials and methods We included 101 patients with hematuria who underwent urography three-dimensional CT between April 2009 and November 2013. These patients were divided into NCS ( n  = 25) and non-NCS ( n  = 76) patients according to the following CT criteria: (1) the presence of beak sign and (2) hilar-aortomesenteric left Renal vein diameter ratio >4. Patients were grouped according to the presence of the liver and pancreas at the LRV: group LP (both liver and pancreas), group L (only liver), group P (only pancreas), and group O (neither liver nor pancreas). The difference in the frequencies of groups was analyzed between NCS and non-NCS patients. Multivariate analysis was used to determine the independent factors between NCS and non-NCS patients. Results The frequencies of group LP, group L, group P, and group O in NCS vs. non-NCS were 88% vs. 5.3% ( p p  = 0.75), 4.0% vs. 11.8% ( p  = 0.45), 4.0% vs. 80.3% ( p p  = 0.022), and group LP was an independent factor for the presence of NCS (odds ratio, 43.8; 95% confidence interval, 3.8–500.3; p Conclusion The presence of the liver and pancreas at the level of the LRV was frequently found in NCS and was the independent factor for NCS.

Pravin Patil - One of the best experts on this subject based on the ideXlab platform.

  • Nonatherosclerotic Obstructive Vascular Diseases of the Mesenteric and Renal Arteries
    Clinical cardiology, 2014
    Co-Authors: Ricardo O. Escarcega, Moses Mathur, Joseph John Franco, Mohamad Alkhouli, Chirdeep Patel, Kanwar P. Singh, Riyaz Bashir, Pravin Patil
    Abstract:

    Nonatherosclerotic vascular diseases of the mesenteric and Renal arteries are considered to occur less frequently than those caused by occlusive atherosclerotic disease. However, when present, they pose a significant diagnostic and therapeutic challenge. Such disorders include fibromuscular dysplasia, median arcuate ligament Syndrome, the Renal Nutcracker Syndrome, and some forms of acute and chronic mesenteric ischemia (embolic and thrombotic). This is a heterogeneous group of disorders with substantial differences in the pathogenesis and diagnostic approaches to these diseases. We provide an overview of the pathogenesis, clinical presentation, diagnosis, and current management of fibromuscular dysplasia, median arcuate ligament Syndrome, and the Renal Nutcracker Syndrome.