What is claim is:
1. An intermediary device disposed between a first network and a second network and for relaying a data packet communicated between the first network and the second network, said intermediary device comprising:
a host name detecting unit for extracting a host name from the data packet transmitted from the first network; and
a translation table storing unit for storing a translation table for making the host name correspond to an address in the second network,
wherein said intermediary device refers to the translation table and translates the extracted host name into the address in the second network.
2. An intermediary device according to claim 1 further comprising:
an address translating unit for referring to the translation table and translating the extracted host name into the address in the second network.
3. An intermediary device according to claim 1,
wherein said intermediary device transmits the data packet to the second network, the address used for the translation in the second network being set at a transmission destination.
4. An intermediary device according to claim 1 further comprising:
a control unit for determining the address in the second network based on the host name with reference to the translation table, and transmitting the data packet to the second network.
5. An intermediary device according to claim 4,
wherein said control unit, on receiving the data packet from the first network, extracts host name information from the data packet and determines the address based on the host name with reference to the translation table when said intermediary device is set in a translation mode by a host name, and performs processing based on a destination port number when said intermediary device is not set in the translation mode.
6. An intermediary device according to claim 1,
wherein the first network is a wide area network, and the address in the second network is a local IP address.
7. An intermediary device according to claim 6,
wherein said intermediary device receives a local IP address and a host name that are inputted from a terminal connected to the second network, and informs a DDNS server connected to the wide area network of a global IP address allocated to said intermediary device and the inputted host name.
8. An intermediary device disposed between a first network and a second network and for relaying a data packet communicated between the first network and the second network, said intermediary device comprising:
a host name detecting unit for extracting a host name from the data packet transmitted from the first network; and
a translation table storing unit for storing a translation table for making the host name correspond to an address in the second network,
wherein said intermediary device receive the data packet from the first network, extracts host name information from the data packet and determines the address based on the host name with reference to the translation table.
9. A forwarding method of relaying a data packet communicated between a first network and a second network, said forwarding method comprising the steps of:
extracting a host name from the data packet;
translating the extracted host name into a corresponding address in the second network; and
transmitting the data packet to the second network, the address used for the translation in the second network being set as a transmission destination.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An imaging system of microbubble therapy cooperated with an ultrasonic device for monitoring a cavitation on microbubbles in a vessel of an affected part, wherein the cavitation is occurred by applying an ultrasound to disrupt the microbubbles, comprising:
an image acquiring module comprising at least one magnetic resonance device for acquiring a plurality of magnetic resonance images of the cavitation; and
a controlling module provided for controlling an acquiring time of the magnetic resonance device and an irradiation time of the ultrasonic device through a controlling mode.
2. The imaging system according to claim 1, wherein the microbubbles comprise drugs for treating the affected part.
3. The imaging system according to claim 1, wherein the magnetic resonance images are gradient echo magnetic resonance images.
4. The imaging system according to claim 3, wherein the gradient echo magnetic resonance images are acquired by adopting a flip angle of 0-90 degrees.
5. The imaging system according to claim 1, further comprising:
a computing module for providing a relation diagram between time and an acquiring signal intensity, wherein the acquiring signal intensity is a contrast value of the magnetic resonance images acquired, respectively, at a specific time and at an initial time.
6. The imaging system according to claim 5, wherein the acquiring signal intensity is a mean contrast value of several positions of the magnetic resonance images acquired, respectively, at the specific time and at the initial time of several positions.
7. The imaging system according to claim 5, the computing module provides a revising value that feed back to the controlling module for adjusting the magnetic resonance images taking.
8. The imaging system according to claim 1, wherein the controlling mode comprises a consecutive mode, an intermittent mode and a burst mode.
9. The imaging system according to claim 8, wherein the consecutive mode is performed to apply continuous ultrasound pulses for the irradiation time within the acquiring time.
10. The imaging system according to claim 8, wherein the intermittent mode is performed to apply several times of continuous ultrasound pulses spaced at intervals for the irradiation time within the acquiring time.
11. The imaging system according to claim 8, wherein the burst mode is performed to apply ultrasound pulses for the irradiation time with a duty cycle within the acquiring time.
12. An image evaluation method of microbubble therapy for monitoring a cavitation on microbubbles in a vessel of an affected part, comprising steps:
injecting the microbubbles into the vessel of the affected part;
acquiring a plurality of magnetic resonance images by a magnetic resonance device and in a acquiring time;
irradiating the microbubbles for an irradiation time by an ultrasound, wherein the irradiation time is within the acquiring time; and
monitoring changes of the magnetic resonance images.
13. The image evaluation method according to claim 12, wherein an irradiation path of the ultrasound is perpendicular to the direction of flow in the vessel.
14. The image evaluation method according to claim 12, wherein the microbubbles comprise drugs for treating the affected part.
15. The image evaluation method according to claim 12, wherein the step of monitoring the changes of the magnetic resonance images further comprises:
providing a relation diagram between time and an acquiring signal intensity, wherein the acquiring signal intensity is a contrast value of the magnetic resonance images acquired, respectively, at a specific time and at an initial time.
16. The image evaluation method according to claim 14, wherein the acquiring signal intensity is a mean contrast value of several positions of the magnetic resonance images acquired, respectively, at the specific time and at the initial time of several positions.
17. The image evaluation method according to claim 12, wherein the magnetic resonance images are a plurality of gradient echo magnetic resonance images.
18. The image evaluation method according to claim 17, wherein the gradient echo magnetic resonance images are acquired by adopting a flip angle of 0-90 degrees.
19. The image evaluation method according to claim 12, wherein the irradiation time is time for consecutively applying the continuous ultrasound pulses.
20. The image evaluation method according to claim 12, wherein the irradiation time is time for applying several times of continuous ultrasound pulses spaced at intervals.
21. The image evaluation method according to claim 12, wherein the irradiation time is time for applying ultrasound pulses with a duty cycle.