The Experts below are selected from a list of 202443 Experts worldwide ranked by ideXlab platform

Mamoru Mitsuishi - One of the best experts on this subject based on the ideXlab platform.

  • Construction Methodology for non-invasive ultrasound theragnostic system by medical digitalization
    Journal of the Acoustical Society of America, 2016
    Co-Authors: Norihiro Koizumi, Hiroyuki Tsukihara, Kiyoshi Yoshinaka, Hideyo Miyazaki, Hiroyuki Fukuda, Kazushi Numata, Yukio Homma, Yoichiro Matsumoto, Mamoru Mitsuishi
    Abstract:

    We propose a noninvasive ultrasound theragnostic system (NIUTS) that compensates for movement by tracking and following the area to be treated by using stereo ultrasound imaging while irradiating the focal lesion with HIFU. Theragnostics involves therapeutics and diagnostics. Our proposed system uses focused ultrasound to destroy tumors and stones without damaging the surrounding healthy tissue. This is achieved by tracking and following the focal lesion (stones/tumors), in order to compensate for movement due to respiration, heartbeat, etc. In the overall research project, we aim to enhance the focal lesion servo (FLS) performances based on our original medical support system Construction Methodology, which is called “Me-DigIT (medical digitalization by IT technology, which includes especially robot technology).” In the present report, we illustrate the mechanisms, controllers, and robot vision core technology to enhance the focal lesion tracking and following performance of the NIUTS. As a result, with ...

  • Construction Methodology for a remote ultrasound diagnostic system
    IEEE Transactions on Robotics, 2009
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    In the present paper, we describe a method for constructing a remote ultrasound diagnostic system. Remote diagnosis can be realized using a communication network. We have developed a master-slave type remote medical system to diagnose shoulder diseases, such as dialysis-related amyloid arthropathy (DRAA), by ultrasonographic images. Proper positioning, orientation, and contact force between the ultrasound probe and the affected area of the patient are required in order to acquire proper diagnostic images. Safety and manipulability are also required when operating the remote medical system through a communication network. Therefore, the system has impedance control capability for positioning of the master and slave manipulators in order to convey the contact force and enhance manipulability. In addition, the system has continuous-path control capability for the orientation of the slave manipulator in order to realize smooth and accurate motion of the ultrasound probe, even if the sampling rate of the transmission of the orientation data of the master manipulator is not sufficient. The results of remote diagnostic experiments demonstrated that a healthcare professional could diagnose real patients through a communication network using the constructed system.

  • a study on the Construction Methodology of remote ultrasound diagnostic system
    Journal of the Robotics Society of Japan, 2007
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    Remote diagnosis can be realized using communication network. We have been developed a master-slave type remote medical system for the diagnosis of the shoulder disease such as dialysis related amyloid arthropathy (DRAA) by ultrasonographic images. Proper position, orientation, and contact force between the ultrasound probe and the affected part of the patient should be required to acquire proper diagnostic images in the diagnosis. Safety and manipulability are also required to construct the remote medical system through the communication network. Then, it has impedance control capability for the master and slave manipulators' positions to display contact force and enhance manipulability. And it has Continuous Path control capability for the slave manipulator's orientation to realize the smooth and accurate motion of the ultrasound probe even if it is difficult to transmit control data at high sampling rate through the communication network. The results of the remote diagnostic experiments demonstrated that the healthcare professionals could perform the diagnosis for the real patients through the communication network using the constructed system.

Norihiro Koizumi - One of the best experts on this subject based on the ideXlab platform.

  • Construction Methodology for non-invasive ultrasound theragnostic system by medical digitalization
    Journal of the Acoustical Society of America, 2016
    Co-Authors: Norihiro Koizumi, Hiroyuki Tsukihara, Kiyoshi Yoshinaka, Hideyo Miyazaki, Hiroyuki Fukuda, Kazushi Numata, Yukio Homma, Yoichiro Matsumoto, Mamoru Mitsuishi
    Abstract:

    We propose a noninvasive ultrasound theragnostic system (NIUTS) that compensates for movement by tracking and following the area to be treated by using stereo ultrasound imaging while irradiating the focal lesion with HIFU. Theragnostics involves therapeutics and diagnostics. Our proposed system uses focused ultrasound to destroy tumors and stones without damaging the surrounding healthy tissue. This is achieved by tracking and following the focal lesion (stones/tumors), in order to compensate for movement due to respiration, heartbeat, etc. In the overall research project, we aim to enhance the focal lesion servo (FLS) performances based on our original medical support system Construction Methodology, which is called “Me-DigIT (medical digitalization by IT technology, which includes especially robot technology).” In the present report, we illustrate the mechanisms, controllers, and robot vision core technology to enhance the focal lesion tracking and following performance of the NIUTS. As a result, with ...

  • Construction Methodology for NIUTS – Bed Servoing System for Body Targets –
    Journal of robotics and mechatronics, 2013
    Co-Authors: Norihiro Koizumi, Hiroyuki Tsukihara, Kiyoshi Yoshinaka, Joonho Seo, Takakazu Funamoto, Yutaro Itagaki, Akira Nomiya, Akira Ishikawa, Naohiko Sugita, Yukio Homma
    Abstract:

    Unwanted motion is a serious problem in enhancing servoing performance in an affected area, which incorporates stones/tumours in non-invasive ultrasound theragnostic systems (NIUTS). To solve this problem, we proposed a new method for restricting the motion of the affected area ventrodorsally in the region of interest (ROI) in ultrasound imaging. To do so, we introduce a bed mechanism for NIUTS. It is confirmed that a human kidney could be tracked and followed appropriately using the proposedmethod and the newly constructed bed system.

  • Construction Methodology for a remote ultrasound diagnostic system
    IEEE Transactions on Robotics, 2009
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    In the present paper, we describe a method for constructing a remote ultrasound diagnostic system. Remote diagnosis can be realized using a communication network. We have developed a master-slave type remote medical system to diagnose shoulder diseases, such as dialysis-related amyloid arthropathy (DRAA), by ultrasonographic images. Proper positioning, orientation, and contact force between the ultrasound probe and the affected area of the patient are required in order to acquire proper diagnostic images. Safety and manipulability are also required when operating the remote medical system through a communication network. Therefore, the system has impedance control capability for positioning of the master and slave manipulators in order to convey the contact force and enhance manipulability. In addition, the system has continuous-path control capability for the orientation of the slave manipulator in order to realize smooth and accurate motion of the ultrasound probe, even if the sampling rate of the transmission of the orientation data of the master manipulator is not sufficient. The results of remote diagnostic experiments demonstrated that a healthcare professional could diagnose real patients through a communication network using the constructed system.

  • a study on the Construction Methodology of remote ultrasound diagnostic system
    Journal of the Robotics Society of Japan, 2007
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    Remote diagnosis can be realized using communication network. We have been developed a master-slave type remote medical system for the diagnosis of the shoulder disease such as dialysis related amyloid arthropathy (DRAA) by ultrasonographic images. Proper position, orientation, and contact force between the ultrasound probe and the affected part of the patient should be required to acquire proper diagnostic images in the diagnosis. Safety and manipulability are also required to construct the remote medical system through the communication network. Then, it has impedance control capability for the master and slave manipulators' positions to display contact force and enhance manipulability. And it has Continuous Path control capability for the slave manipulator's orientation to realize the smooth and accurate motion of the ultrasound probe even if it is difficult to transmit control data at high sampling rate through the communication network. The results of the remote diagnostic experiments demonstrated that the healthcare professionals could perform the diagnosis for the real patients through the communication network using the constructed system.

Ping Liu - One of the best experts on this subject based on the ideXlab platform.

  • Total Synthesis of the Actin-Depolymerizing Agent (−)-Mycalolide A: Application of Chiral Silane-Based Bond Construction Methodology
    Journal of the American Chemical Society, 2000
    Co-Authors: James S. Panek And, Ping Liu
    Abstract:

    A highly convergent asymmetric synthesis of the actin-depolymerizing agent (−)-mycalolide A has been achieved through the assembly and union of the C1−C19 trisoxazole fragment 2 and the C20−C35 aliphatic fragment 3, respectively. The C1−C19 fragment 2 was constructed via a Kishi−Nozaki coupling between the C1−C6 subunit 4 and the C7−C19 subunit 5, which in turn was obtained from a highly stereoselective crotylation reaction of silane (S)-7 with trisoxazole aldehyde 8. The synthesis of the C20−C35 fragment 3 has been accomplished using chiral silane-based bond Construction Methodology for the introduction of the stereochemical relationships. Union of the advanced intermediates 2 and 3 through a Schlosser−Wittig protocol, macrocyclization utilizing Yamaguchi conditions, and subsequent functional group adjustments completed the total synthesis of (−)-mycalolide A. The synthesis confirms the relative and absolute stereochemistry of (−)-mycalolide A, as well as illustrates the application of chiral silane-base...

  • total synthesis of the actin depolymerizing agent mycalolide a application of chiral silane based bond Construction Methodology
    Journal of the American Chemical Society, 2000
    Co-Authors: James Panek S And, Ping Liu
    Abstract:

    A highly convergent asymmetric synthesis of the actin-depolymerizing agent (−)-mycalolide A has been achieved through the assembly and union of the C1−C19 trisoxazole fragment 2 and the C20−C35 aliphatic fragment 3, respectively. The C1−C19 fragment 2 was constructed via a Kishi−Nozaki coupling between the C1−C6 subunit 4 and the C7−C19 subunit 5, which in turn was obtained from a highly stereoselective crotylation reaction of silane (S)-7 with trisoxazole aldehyde 8. The synthesis of the C20−C35 fragment 3 has been accomplished using chiral silane-based bond Construction Methodology for the introduction of the stereochemical relationships. Union of the advanced intermediates 2 and 3 through a Schlosser−Wittig protocol, macrocyclization utilizing Yamaguchi conditions, and subsequent functional group adjustments completed the total synthesis of (−)-mycalolide A. The synthesis confirms the relative and absolute stereochemistry of (−)-mycalolide A, as well as illustrates the application of chiral silane-base...

Mitsuru Nagoshi - One of the best experts on this subject based on the ideXlab platform.

  • Construction Methodology for a remote ultrasound diagnostic system
    IEEE Transactions on Robotics, 2009
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    In the present paper, we describe a method for constructing a remote ultrasound diagnostic system. Remote diagnosis can be realized using a communication network. We have developed a master-slave type remote medical system to diagnose shoulder diseases, such as dialysis-related amyloid arthropathy (DRAA), by ultrasonographic images. Proper positioning, orientation, and contact force between the ultrasound probe and the affected area of the patient are required in order to acquire proper diagnostic images. Safety and manipulability are also required when operating the remote medical system through a communication network. Therefore, the system has impedance control capability for positioning of the master and slave manipulators in order to convey the contact force and enhance manipulability. In addition, the system has continuous-path control capability for the orientation of the slave manipulator in order to realize smooth and accurate motion of the ultrasound probe, even if the sampling rate of the transmission of the orientation data of the master manipulator is not sufficient. The results of remote diagnostic experiments demonstrated that a healthcare professional could diagnose real patients through a communication network using the constructed system.

  • a study on the Construction Methodology of remote ultrasound diagnostic system
    Journal of the Robotics Society of Japan, 2007
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    Remote diagnosis can be realized using communication network. We have been developed a master-slave type remote medical system for the diagnosis of the shoulder disease such as dialysis related amyloid arthropathy (DRAA) by ultrasonographic images. Proper position, orientation, and contact force between the ultrasound probe and the affected part of the patient should be required to acquire proper diagnostic images in the diagnosis. Safety and manipulability are also required to construct the remote medical system through the communication network. Then, it has impedance control capability for the master and slave manipulators' positions to display contact force and enhance manipulability. And it has Continuous Path control capability for the slave manipulator's orientation to realize the smooth and accurate motion of the ultrasound probe even if it is difficult to transmit control data at high sampling rate through the communication network. The results of the remote diagnostic experiments demonstrated that the healthcare professionals could perform the diagnosis for the real patients through the communication network using the constructed system.

Hiroyuki Hashizume - One of the best experts on this subject based on the ideXlab platform.

  • Construction Methodology for a remote ultrasound diagnostic system
    IEEE Transactions on Robotics, 2009
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    In the present paper, we describe a method for constructing a remote ultrasound diagnostic system. Remote diagnosis can be realized using a communication network. We have developed a master-slave type remote medical system to diagnose shoulder diseases, such as dialysis-related amyloid arthropathy (DRAA), by ultrasonographic images. Proper positioning, orientation, and contact force between the ultrasound probe and the affected area of the patient are required in order to acquire proper diagnostic images. Safety and manipulability are also required when operating the remote medical system through a communication network. Therefore, the system has impedance control capability for positioning of the master and slave manipulators in order to convey the contact force and enhance manipulability. In addition, the system has continuous-path control capability for the orientation of the slave manipulator in order to realize smooth and accurate motion of the ultrasound probe, even if the sampling rate of the transmission of the orientation data of the master manipulator is not sufficient. The results of remote diagnostic experiments demonstrated that a healthcare professional could diagnose real patients through a communication network using the constructed system.

  • a study on the Construction Methodology of remote ultrasound diagnostic system
    Journal of the Robotics Society of Japan, 2007
    Co-Authors: Norihiro Koizumi, Mitsuru Nagoshi, Hiroyuki Hashizume, Shin'ichi Warisawa, Mamoru Mitsuishi
    Abstract:

    Remote diagnosis can be realized using communication network. We have been developed a master-slave type remote medical system for the diagnosis of the shoulder disease such as dialysis related amyloid arthropathy (DRAA) by ultrasonographic images. Proper position, orientation, and contact force between the ultrasound probe and the affected part of the patient should be required to acquire proper diagnostic images in the diagnosis. Safety and manipulability are also required to construct the remote medical system through the communication network. Then, it has impedance control capability for the master and slave manipulators' positions to display contact force and enhance manipulability. And it has Continuous Path control capability for the slave manipulator's orientation to realize the smooth and accurate motion of the ultrasound probe even if it is difficult to transmit control data at high sampling rate through the communication network. The results of the remote diagnostic experiments demonstrated that the healthcare professionals could perform the diagnosis for the real patients through the communication network using the constructed system.