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Hana Azman - One of the best experts on this subject based on the ideXlab platform.

Amy W Penn - One of the best experts on this subject based on the ideXlab platform.

Nancy Beam - One of the best experts on this subject based on the ideXlab platform.

Hiroki Higashi - One of the best experts on this subject based on the ideXlab platform.

  • traumatic Hypovolemic Shock revisited the spectrum of contrast enhanced abdominal computed tomography findings and clinical implications for its management
    Japanese Journal of Radiology, 2014
    Co-Authors: Hiroki Higashi, Akihiko Kanki, Akira Yamamoto, Atsushi Higaki, Shigeru Watanabe, Yasufumi Noda, Kazuya Yasokawa, Tsutomu Tamada
    Abstract:

    Hypovolemic Shock is often seen in patients with severe blunt trauma who have suffered from blood circulation inadequate to maintain oxygen delivery to multiple organs. The early recognition and prompt management of Hypovolemic Shock in patients with multiple injuries are mandatory to improving prognosis and patient conditions. The diagnostic accuracy of computed tomography (CT) as a primary diagnostic tool is well established. The abdominal organs show several common and classic appearances on contrast-enhanced CT in patients with trauma. The Hypovolemic Shock complex is reported in the previous literature as decreased enhancement of the viscera, increased mucosal enhancement and luminal dilation of the small bowel, mural thickening and fluid-filled loops of the small bowel, the halo sign and flattening of the inferior vena cava, reduced aortic diameter, and peripancreatic edema. However, there have been controversial CT reports with contradictory appearances. Physicians understanding these findings could prompt alternative approaches to the early assessment and management of Hypovolemic Shock. The aim of this article is to illustrate common and well-known abdominal CT features in patients with traumatic Hypovolemic Shock, to discuss controversial CT signs in the pancreas and adrenal gland, and to describe CT findings’ clinical implications when managing Hypovolemic Shock.

  • Hypovolemic Shock complex does the pancreatic perfusion increase or decrease at contrast enhanced dynamic ct
    Clinical Imaging, 2014
    Co-Authors: Hiroki Higashi, Tsutomu Tamada, Akihiko Kanki, Akira Yamamoto
    Abstract:

    Abstract Objective The purpose of this study is to evaluate contrast enhancement effects of the pancreas at dynamic computed tomography (CT) to clarify whether pancreatic perfusion increases or decreases in severe trauma patients with Hypovolemic Shock. Methods A total of 90 patients with ( n =30) and without ( n =60) blunt trauma and Hypovolemic Shock who underwent dynamic CT for abdomen was included. The measurement of CT attenuation values of the pancreas in the early phase and the late phase was performed to compare the contrast enhancement effects between patients with and without Hypovolemic Shock. Results The mean CT attenuation values of the pancreas in the early phase of dynamic CT in patients with Hypovolemic Shock [95.4±29.1 Hounsfield units (HU)] were significantly lower ( P P Conclusions Decreased pancreatic perfusion in the early phase and delayed pancreatic enhancement in the late phase of contrast-enhanced dynamic CT was a common finding in patients with Hypovolemic Shock.

  • Hypovolemic Shock complex: does the pancreatic perfusion increase or decrease at contrast-enhanced dynamic CT?
    Clinical Imaging, 2013
    Co-Authors: Hiroki Higashi, Tsutomu Tamada, Akihiko Kanki, Akira Yamamoto
    Abstract:

    Abstract Objective The purpose of this study is to evaluate contrast enhancement effects of the pancreas at dynamic computed tomography (CT) to clarify whether pancreatic perfusion increases or decreases in severe trauma patients with Hypovolemic Shock. Methods A total of 90 patients with ( n =30) and without ( n =60) blunt trauma and Hypovolemic Shock who underwent dynamic CT for abdomen was included. The measurement of CT attenuation values of the pancreas in the early phase and the late phase was performed to compare the contrast enhancement effects between patients with and without Hypovolemic Shock. Results The mean CT attenuation values of the pancreas in the early phase of dynamic CT in patients with Hypovolemic Shock [95.4±29.1 Hounsfield units (HU)] were significantly lower ( P P Conclusions Decreased pancreatic perfusion in the early phase and delayed pancreatic enhancement in the late phase of contrast-enhanced dynamic CT was a common finding in patients with Hypovolemic Shock.

  • dynamic contrast enhanced ct of the abdomen to predict clinical prognosis in patients with Hypovolemic Shock
    American Journal of Roentgenology, 2011
    Co-Authors: Akihiko Kanki, Hiroki Higashi, Tsutomu Tamada, Tomohiro Sato, Daigo Tanimoto, Atsushi Higaki
    Abstract:

    OBJECTIVE. The objective of our study was to investigate the value of dynamic contrast-enhanced CT (DCE-CT) findings in predicting the clinical prognosis of patients with Hypovolemic Shock. MATERIALS AND METHODS. This study included 33 patients with Hypovolemic Shock who underwent DCE-CT of the abdomen due to trauma. The CT attenuation values of several abdominal organs (spleen, liver, pancreas, kidneys [cortex and medulla], adrenal gland) in patients with Hypovolemic Shock were measured in the early phase and delayed phase to compare the differences in contrast enhancement effects between the survival group and the deceased group. RESULTS. Among the 33 patients with Hypovolemic Shock, 15 patients died (deceased group) within 5 weeks (mean, 6 days). The remaining 18 patients survived and recovered (survival group). The mean CT attenuation values of the renal medulla in the delayed phase CT in the deceased group (155.4 ± 60.1 [SD] HU) were significantly lower (p = 0.001) than those in the survival group (2...

  • adrenal glands in Hypovolemic Shock preservation of contrast enhancement at dynamic computed tomography
    Journal of Computer Assisted Tomography, 2010
    Co-Authors: Hiroki Higashi, Tsutomu Tamada, Akihiko Kanki, Akira Yamamoto, Takenori Yamashita, Shigeru Watanabe
    Abstract:

    Purpose:To evaluate contrast enhancement effects of the adrenal glands at dynamic computed tomography (CT) in adult severe trauma patients with Hypovolemic Shock in comparison with patients without Hypovolemic Shock.Materials and Methods:This study population included a total of 74 patients with (n

Akihiko Kanki - One of the best experts on this subject based on the ideXlab platform.

  • traumatic Hypovolemic Shock revisited the spectrum of contrast enhanced abdominal computed tomography findings and clinical implications for its management
    Japanese Journal of Radiology, 2014
    Co-Authors: Hiroki Higashi, Akihiko Kanki, Akira Yamamoto, Atsushi Higaki, Shigeru Watanabe, Yasufumi Noda, Kazuya Yasokawa, Tsutomu Tamada
    Abstract:

    Hypovolemic Shock is often seen in patients with severe blunt trauma who have suffered from blood circulation inadequate to maintain oxygen delivery to multiple organs. The early recognition and prompt management of Hypovolemic Shock in patients with multiple injuries are mandatory to improving prognosis and patient conditions. The diagnostic accuracy of computed tomography (CT) as a primary diagnostic tool is well established. The abdominal organs show several common and classic appearances on contrast-enhanced CT in patients with trauma. The Hypovolemic Shock complex is reported in the previous literature as decreased enhancement of the viscera, increased mucosal enhancement and luminal dilation of the small bowel, mural thickening and fluid-filled loops of the small bowel, the halo sign and flattening of the inferior vena cava, reduced aortic diameter, and peripancreatic edema. However, there have been controversial CT reports with contradictory appearances. Physicians understanding these findings could prompt alternative approaches to the early assessment and management of Hypovolemic Shock. The aim of this article is to illustrate common and well-known abdominal CT features in patients with traumatic Hypovolemic Shock, to discuss controversial CT signs in the pancreas and adrenal gland, and to describe CT findings’ clinical implications when managing Hypovolemic Shock.

  • Hypovolemic Shock complex does the pancreatic perfusion increase or decrease at contrast enhanced dynamic ct
    Clinical Imaging, 2014
    Co-Authors: Hiroki Higashi, Tsutomu Tamada, Akihiko Kanki, Akira Yamamoto
    Abstract:

    Abstract Objective The purpose of this study is to evaluate contrast enhancement effects of the pancreas at dynamic computed tomography (CT) to clarify whether pancreatic perfusion increases or decreases in severe trauma patients with Hypovolemic Shock. Methods A total of 90 patients with ( n =30) and without ( n =60) blunt trauma and Hypovolemic Shock who underwent dynamic CT for abdomen was included. The measurement of CT attenuation values of the pancreas in the early phase and the late phase was performed to compare the contrast enhancement effects between patients with and without Hypovolemic Shock. Results The mean CT attenuation values of the pancreas in the early phase of dynamic CT in patients with Hypovolemic Shock [95.4±29.1 Hounsfield units (HU)] were significantly lower ( P P Conclusions Decreased pancreatic perfusion in the early phase and delayed pancreatic enhancement in the late phase of contrast-enhanced dynamic CT was a common finding in patients with Hypovolemic Shock.

  • Hypovolemic Shock complex: does the pancreatic perfusion increase or decrease at contrast-enhanced dynamic CT?
    Clinical Imaging, 2013
    Co-Authors: Hiroki Higashi, Tsutomu Tamada, Akihiko Kanki, Akira Yamamoto
    Abstract:

    Abstract Objective The purpose of this study is to evaluate contrast enhancement effects of the pancreas at dynamic computed tomography (CT) to clarify whether pancreatic perfusion increases or decreases in severe trauma patients with Hypovolemic Shock. Methods A total of 90 patients with ( n =30) and without ( n =60) blunt trauma and Hypovolemic Shock who underwent dynamic CT for abdomen was included. The measurement of CT attenuation values of the pancreas in the early phase and the late phase was performed to compare the contrast enhancement effects between patients with and without Hypovolemic Shock. Results The mean CT attenuation values of the pancreas in the early phase of dynamic CT in patients with Hypovolemic Shock [95.4±29.1 Hounsfield units (HU)] were significantly lower ( P P Conclusions Decreased pancreatic perfusion in the early phase and delayed pancreatic enhancement in the late phase of contrast-enhanced dynamic CT was a common finding in patients with Hypovolemic Shock.

  • dynamic contrast enhanced ct of the abdomen to predict clinical prognosis in patients with Hypovolemic Shock
    American Journal of Roentgenology, 2011
    Co-Authors: Akihiko Kanki, Hiroki Higashi, Tsutomu Tamada, Tomohiro Sato, Daigo Tanimoto, Atsushi Higaki
    Abstract:

    OBJECTIVE. The objective of our study was to investigate the value of dynamic contrast-enhanced CT (DCE-CT) findings in predicting the clinical prognosis of patients with Hypovolemic Shock. MATERIALS AND METHODS. This study included 33 patients with Hypovolemic Shock who underwent DCE-CT of the abdomen due to trauma. The CT attenuation values of several abdominal organs (spleen, liver, pancreas, kidneys [cortex and medulla], adrenal gland) in patients with Hypovolemic Shock were measured in the early phase and delayed phase to compare the differences in contrast enhancement effects between the survival group and the deceased group. RESULTS. Among the 33 patients with Hypovolemic Shock, 15 patients died (deceased group) within 5 weeks (mean, 6 days). The remaining 18 patients survived and recovered (survival group). The mean CT attenuation values of the renal medulla in the delayed phase CT in the deceased group (155.4 ± 60.1 [SD] HU) were significantly lower (p = 0.001) than those in the survival group (2...

  • adrenal glands in Hypovolemic Shock preservation of contrast enhancement at dynamic computed tomography
    Journal of Computer Assisted Tomography, 2010
    Co-Authors: Hiroki Higashi, Tsutomu Tamada, Akihiko Kanki, Akira Yamamoto, Takenori Yamashita, Shigeru Watanabe
    Abstract:

    Purpose:To evaluate contrast enhancement effects of the adrenal glands at dynamic computed tomography (CT) in adult severe trauma patients with Hypovolemic Shock in comparison with patients without Hypovolemic Shock.Materials and Methods:This study population included a total of 74 patients with (n