1. An diagnosis information generating system comprising:
a radiation image photographing device capable of generating image data of a phase contrast image corresponding to a high energy zone and image data of a phase contrast image corresponding to a low energy zone, the radiation image photographing device including:
a radiation source for irradiating a radiation to a region of a subject to be radiographed; and
a radiation image detector for recording a radiation image according to a dose of a radiation irradiated from the radiation source and having entered the detector,
the diagnosis information generating system further comprising,
an output device for outputting image data generated by the radiation image photographing device.
2. The diagnosis information generating system of claim 1,
wherein an average radiation energy of the radiation source of the radiation image photographing device is 27.4 keV or less when generating image data of a phase contrast image corresponding to the low energy zone and the average radiation energy is 41.2 keV or more when generating image data of a phase contrast image corresponding to the high energy zone.
3. A diagnosis information generating method comprising:
generating image data of a phase contrast image corresponding to a low energy zone by irradiating a radiation to a region of a subject to be radiographed, in a low energy zone image generating step;
generating image data of a phase contrast image corresponding to a high energy zone by irradiating a radiation to a region of a subject to be radiographed, in a high energy zone image generating step; and
outputting the image data generated in the low energy zone image generating step and the high energy zone image generating step.
4. The diagnosis information generating method of claim 3,
wherein an average radiation energy of a radiation irradiated when generating image data of a phase contrast image corresponding to the low energy zone is 27.4 keV or less and the average radiation energy of a radiation irradiated when generating image data of a phase contrast image corresponding to the high energy zone is 41.2 keV or more.
5. A diagnosis information displaying method comprising:
generating image data of a phase contrast image corresponding to a low energy zone by irradiating a radiation to a region of a subject to be radiographed, in a low energy zone image generating step;
generating image data of a phase contrast image corresponding to a high energy zone by irradiating a radiation to a region of a subject to be radiographed, in a high energy zone image generating step; and
displaying the image data of a phase contrast image corresponding to a low energy zone, generated in the low energy zone image generating step and the image data of a phase contrast image corresponding to a high energy zone, generated in the high energy zone image generating step so as to be switchable to each other.
6. The diagnosis information displaying method of claim 5,
wherein an average radiation energy of a radiation irradiated when generating image data of a phase contrast image corresponding to the low energy zone is 27.4 keV or less and the average radiation energy of a radiation irradiated when generating image data of a phase contrast image corresponding to the high energy zone is 41.2 keV or more.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-28. (canceled)
29. An apparatus comprising:
a challenge unit to:
transmit challenges to respective ones of a plurality of session servers; and receive, based on the challenges, challenge responses from the respective ones of the plurality of session servers, wherein individual challenge responses are to include an indication of an activity status of a communication session controlled by a corresponding session server; and
a response unit coupled with the challenge unit, the response unit to:
generate a single response based on the activity statuses of communication sessions controlled by at least a subset of the plurality of session servers; and
transmit the single response.
30. The apparatus of claim 29, wherein the challenge unit is to transmit the challenges based on a received request from a communication session participant appliance, and the response unit is to transmit the single response to the communication session participant appliance.
31. The apparatus of claim 29, further comprising a condition checking unit coupled with the response unit, the condition checking unit to:
identify a condition of an active communication session; and
identify, based on the respective challenge responses, active communication sessions that fulfill the condition; and
the response unit is further to generate the single response related only to the activity statuses of communication sessions that fulfill the condition and inactive communication sessions.
32. The apparatus of claim 31, wherein the condition relates to a presence information item or a location information item.
33. The apparatus of claim 29, wherein the single response is a first single response, and where the challenge unit is further to receive an updated indication from a session server that an active communication session controlled by the session server has become inactive; and
the response unit is further to:
generate a second single response based on the activity statuses of communication sessions controlled by at least a subset of the plurality of session servers and the updated indication; and
transmit the second single response.
34. The apparatus of claim 29, wherein individual challenge responses include a group address or a participant address for a respective communication session.
35. A method for ascertaining active communication sessions, the method comprising:
receiving, at a communication session information server, a request to identify active communication sessions of a plurality of communication session servers;
transmitting, from the communication session information server in response to the request, challenges to respective ones of the plurality of communication session servers;
receiving, at the communication session information server and based on the challenges, challenge responses from corresponding ones of the plurality of communication session servers, wherein an individual challenge response includes an indication of whether a communication session controlled by the communication session server is active or does not exist;
consolidating, by the communication session information server, the challenge responses into a single response message that includes an indication of activity statuses of the communication sessions controlled by at least a subset of the plurality of communication session servers; and
transmitting, from the communication session information server, the single response.
36. The method of claim 35, wherein the received request is a request from a communication session participant appliance and the single response is sent to the communication session participant appliance.
37. The method of claim 35, wherein the request includes an indication of a condition, and the single response includes an indication of only active communication sessions that fulfill the condition.
38. The method of claim 37, wherein the condition relates to a presence information item or a location information item.
39. The method of claim 35, wherein the single response is a first single response, and further comprising:
receiving, by the communication session information server, after the transmitting the single response, an updated indication from a communication session server that an active communication session controlled by the communication session server has become inactive;
consolidating, by the communication session information server, the challenge responses of at least a subset of the plurality of session servers and the updated indication into a second single response message; and
transmitting, by the communication session information server, the second single response message.
40. The method of claim 35, wherein the individual challenge response includes a group address or a participant address for communication session related to the individual challenge response.
41. The method of claim 35, wherein the communication sessions are Push-to-Talk over Cellular telecommunication conference sessions.
42. One or more non-transitory computer-readable media comprising instructions that, when executed by one or more processors of an information server, cause the information server to:
receive a request to identify active communication sessions of a plurality of session servers;
transmit, in response to the request, challenges to respective ones of the plurality of session servers;
receive, based on the challenges, challenge responses from corresponding ones of the plurality of session servers, wherein an individual challenge response of a session server includes an indication of an active or inactive communication session controlled by the session server;
consolidate the respective challenge responses into a single response message based on activity statuses of communication sessions of at least a subset of the plurality of session servers; and
transmit the single response.
43. The one or more non-transitory computer readable media of claim 42, wherein the received request is a request from a communication session participant appliance and the single response is sent to the communication session participant appliance.
44. The one or more non-transitory computer readable media of claim 42, wherein the request includes an indication of a condition, and the single response includes an indication of only active communication sessions that fulfill the condition and inactive communication sessions.
45. The one or more non-transitory computer readable media of claim 44, wherein the condition relates to a presence information item or a location information item.
46. The one or more non-transitory computer readable media of claim 42, wherein the single response is a first single response, and further comprising instructions to:
identify, after the transmitting the first single response, an updated indication from a session server that an active communication session of the session server has become inactive;
aggregate the challenge responses and the updated indication into a second single response message based on activity statuses of communication sessions controlled by at least a subset of the plurality of session servers; and
transmit the second single response message.
47. The one or more non-transitory computer readable media of claim 42, wherein an individual challenge response includes a group address or a participant address for a communication session.
48. The one or more non-transitory computer readable media of claim 42, wherein the communication sessions are Push-to-Talk over Cellular telecommunication conference sessions.