Unique ID issued by UMIN | UMIN000016956 |
---|---|
Receipt number | R000019680 |
Scientific Title | Study of intraoperative navigation system in liver surgery |
Date of disclosure of the study information | 2015/03/30 |
Last modified on | 2017/03/29 11:42:37 |
Study of intraoperative navigation system in liver surgery
Study of intraoperative navigation system in liver surgery
Study of intraoperative navigation system in liver surgery
Study of intraoperative navigation system in liver surgery
Japan |
Hepatocellular carcinoma, Intrahepatic cholangiocarcinoma, Liver metastasis, Hilar cholangiocarcinoma
Hepato-biliary-pancreatic surgery | Radiology | Operative medicine |
Malignancy
NO
To validate the efficacy of intraoperative navigation system using Real-time Virtual Sonography in liver surgery
Efficacy
Confirmatory
Pragmatic
Phase II,III
Error of resection line on the liver surface indicated by the navigation system
Weight of specimen
Surgical margin
Number of resected tumors
Time required for liver resection
Time required for registration
Time for use of the navigation system
Surgical time
Amount of blood loss
Interventional
Single arm
Non-randomized
Open -no one is blinded
Uncontrolled
1
Diagnosis
Device,equipment |
Three-dimensional simulation of liver resection is performed with simulation software (OVA, Hitachi Medico; SYNAPSE VINCENT, FUJIFILM) utilizing the data of preoperative enhanced computed tomography (CT). The result of the simulation is transferred to a workstation.
The workstation is carried into the operation room and connected to an ultrasound scanner (Ascendus, Hitachi Aloka Medical) and a tracking device (trakSTAR, Ascension). An electromagnetic transmitter is set on the side of surgical bed. With the system, intraoperative ultrasound image and preoperative CT image on which simulation image is overlaid are displayed side-by-side on a television monitor.
After laparotomy, registration of the navigation system is performed by comparing the images of intraoperative ultrasound and preoperative CT. The resection line indicated by preoperative simulation is marked on the liver surface. The real resection line on the liver surface can be obtained by staining the tumor-baring area with blue dye (indigo carmine), or by dividing both portal vein and hepatic artery of the area. The discrepancy of those resection lines is measured.
In order to check the resection plane, the navigation image is referred during liver resection. After extirpating the liver specimen, its weight and surgical margin are measured. Resected tumor number, time required for resection, total surgical time and amount of blood loss are recorded after the operation.
20 | years-old | <= |
85 | years-old | >= |
Male and Female
(1)Between 20 to 85 years of age
(2)Preoperative enhanced CT and three-dimensional simulation can be performed
(3)Liver neoplasm (hepatocellular carcinoma, intrahepatic cholangiocarcinoma, liver metastasis, hilar cholangiocarcinoma)
(4)Anatomic liver resection is scheduled
(5)Performance status 0 or 1
(6)Sufficient bone-marrow function for safe liver resection
(7)Sufficient liver function for safe liver resection
(1)Concomitant resection of other organ
(2)Major venous reconstruction
(3)Patient with pacemaker
(4)Severe renal dysfunction
(5)Severe tendency to bleed
(6)Patient with decreased judgment due to dementia or psychiatric disorder
(7)Patient who is regarded to be unsuitable for the study by the doctor
20
1st name | |
Middle name | |
Last name | Shouichi Satou |
Saitama Medical Center, Saitama Medical University
Department of Hepato-Biliary-Pancreatic Surgery
1981, Kamoda, Kawagoe, Saitama, Japan
+81-49-228-3614
satous-tky@umin.ac.jp
1st name | |
Middle name | |
Last name | Shouichi Satou |
Saitama Medical Center, Saitama Medical University
Department of Hepato-Biliary-Pancreatic Surgery
1981, Kamoda, Kawagoe, Saitama, Japan
+81-49-228-3614
satous-tky@umin.ac.jp
Department of Hepato-Biliary-Pancreatic Surgery, Saitama Medical Center, Saitama Medical University
Hitachi Aloka Medical
Profit organization
Japan
NO
埼玉医科大学総合医療センター(埼玉県)
2015 | Year | 03 | Month | 30 | Day |
Unpublished
Open public recruiting
2015 | Year | 03 | Month | 26 | Day |
2015 | Year | 04 | Month | 01 | Day |
2015 | Year | 03 | Month | 28 | Day |
2017 | Year | 03 | Month | 29 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000019680