Unique ID issued by UMIN | UMIN000008078 |
---|---|
Receipt number | R000009510 |
Scientific Title | Noninvasive Evaluation of Hepatic Hemodynamics Using Xe Computed Tomography |
Date of disclosure of the study information | 2012/06/02 |
Last modified on | 2023/01/05 07:12:55 |
Noninvasive Evaluation of Hepatic Hemodynamics Using Xe Computed Tomography
Hepatic Hemodynamics Using Xe Computed Tomography
Noninvasive Evaluation of Hepatic Hemodynamics Using Xe Computed Tomography
Hepatic Hemodynamics Using Xe Computed Tomography
Japan |
Liver disease (acute hepatitis, Chronic hepatitis, liver cirrhosis, hepatic failure, etc)
Liver tumor (hepatocellular carcinoma, cholangiocellular carcinoma, metastatic liver tumor, etc)
Hepato-biliary-pancreatic medicine |
Others
NO
Xenon computed tomography (Xe-CT) is a convenient and noninvasive method combining xenon gas inhalation with CT to quantify and visualize tissue blood flow (TBF). Xe-CT is widely used in neurosurgical practice to evaluate cerebral TBF. The liver contains a dual blood supply system that includes the hepatic artery and portal vein, and Xe-CT using a dual blood supply model has been used to evaluate hepatic arterial TBF (HATBF) and portal venous TBF (PVTBF) separately. The present study evaluated the usefulness of Xe-CT as a noninvasive procedure for measuring HATBF, PVTBF and Xe solubility coefficient in patients with various liver disease
Safety,Efficacy
Exploratory
Pragmatic
Not applicable
1. correlation between tissue blood flow and stage of fibrosis.
2. correlation between tissue blood flow and grade of Child-Pugh.
3. correlation between Xe solubility coefficient and stage of steatosis.
4. Alteration of tissue blood flow and Xe solubility coefficient before and after treatment (interferon, endoscopic procedure, operation, diet-exercise therapy, etc)
1. reproducibility
2. safety
Interventional
Single arm
Non-randomized
Open -no one is blinded
Uncontrolled
1
Diagnosis
Device,equipment |
1. Patients with liver disease, who can admit to our hospital
2. we used 25 % stable Xe gas in conjunction with an AZ-726 Xe gas inhalation system (Anzai Medical, Tokyo, Japan). The wash-in and wash-out periods were both 4 min. The entire liver was CT-scanned at 1-min intervals at 4 levels, including the porta hepatis (9 scans in total, including the baseline scan).
3. Using an AZ-7000W image processing system (Anzai Medical), each tissue blood flow and Xe solubility coefficient are calculated.
4. An Aquilion CT scanner (Toshiba Medical Systems, Tokyo, Japan) was used, with exposure factors of 120 kV, 300 mA, and 13.8 mGy.
15 | years-old | <= |
Not applicable |
Male and Female
Inpatients with liver disease or tumor
1. severe cardiac, renal and lung disease
2. consciouness distubance
3. severe allergy and asthma
4. pregnacy
5. Otherwise, in case that investigators judge the patient who is inappropriate for this study.
1000
1st name | Michihiro |
Middle name | |
Last name | Suzuki |
St. Marianna University, School of Medicine
Department of Internal Medicine, Division of Gastroenterology
216-8511
2-16-1, Sugao, Miyamae, Kawasaki, 216-8511, Japan
+81-44-977-8111
hide-bo@marianna-u.ac.jp
1st name | Hideaki |
Middle name | |
Last name | Takahashi |
St. Marianna University, School of Medicine
Department of Internal Medicine, Division of Gastroenterology
216-8511
2-16-1, Sugao, Miyamae, Kawasaki, Kanagawa, 216-8511, Japan
+81-44-977-8111
hide-bo@marianna-u.ac.jp
St. Marianna University, School of Medicine, Department of Internal Medicine, Division of Gastroenterology & Hepatology
St. Marianna University, School of Medicine, Department of Internal Medicine, Division of Gastroenterology & Hepatology
Self funding
Japan
Anzai Medical Company Ltd
St. Marianna University, School of Medicine,
2-16-1, Sugao, Miyamae, Kawasaki, Kanagawa, 216-8511, Japan
+81-44-977-8111
k-sienbu.mail@marianna-u.ac.jp
NO
聖マリアンナ医科大学病院(神奈川県)
2012 | Year | 06 | Month | 02 | Day |
Partially published
Takahashi H, Shigefuku R et al J Gastroenterol 2013
Takahashi H, Shigefuku R et al World J Gastroenterol 2014
Shigefuku R Takahashi H, et al Int J Mol Sci 2014
Shigefuku R Takahashi H, et al Int J Mol Sci 2016
Shigefuku R Takahashi H, et al BMC Gastroetenrol 2022
2023 | Year | 01 | Month | 05 | Day |
Enrolling by invitation
2001 | Year | 09 | Month | 18 | Day |
2001 | Year | 09 | Month | 18 | Day |
2001 | Year | 10 | Month | 01 | Day |
2023 | Year | 03 | Month | 31 | Day |
1. Evaluation of tissue blood flow by stage of fibrosis
2. Evaluation of tissue blood flow by grade of Child-Pugh
3. Evaluation of Xe solubility coefficient by grade of steatosis
4. Evaluation of tissue blood flow by etiology
5. Evaluation of alteration of tissue blood flow and Xe solubility coefficient before and after treatment
2012 | Year | 06 | Month | 01 | Day |
2023 | Year | 01 | Month | 05 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000009510