| 1 | MAGDQR00 ;WOIFO/EdM - Imaging RPCs for Query/Retrieve ; 06/06/2005  09:27 | 
|---|
| 2 | ;;3.0;IMAGING;**51**;26-August-2005 | 
|---|
| 3 | ;; +---------------------------------------------------------------+ | 
|---|
| 4 | ;; | Property of the US Government.                                | | 
|---|
| 5 | ;; | No permission to copy or redistribute this software is given. | | 
|---|
| 6 | ;; | Use of unreleased versions of this software requires the user | | 
|---|
| 7 | ;; | to execute a written test agreement with the VistA Imaging    | | 
|---|
| 8 | ;; | Development Office of the Department of Veterans Affairs,     | | 
|---|
| 9 | ;; | telephone (301) 734-0100.                                     | | 
|---|
| 10 | ;; |                                                               | | 
|---|
| 11 | ;; | The Food and Drug Administration classifies this software as  | | 
|---|
| 12 | ;; | a medical device.  As such, it may not be changed in any way. | | 
|---|
| 13 | ;; | Modifications to this software may result in an adulterated   | | 
|---|
| 14 | ;; | medical device under 21CFR820, the use of which is considered | | 
|---|
| 15 | ;; | to be a violation of US Federal Statutes.                     | | 
|---|
| 16 | ;; +---------------------------------------------------------------+ | 
|---|
| 17 | ;; | 
|---|
| 18 | Q | 
|---|
| 19 | ; | 
|---|
| 20 | ; Query/Retrieve | 
|---|
| 21 | ; | 
|---|
| 22 | ; Step 1: The application (Java system) receives a C-FIND request | 
|---|
| 23 | ; | 
|---|
| 24 | ; Step 2: The application interprets the DICOM message and | 
|---|
| 25 | ;         calls an RPC on traditional VistA | 
|---|
| 26 | ; | 
|---|
| 27 | ;           RPC name: MAG CFIND QUERY | 
|---|
| 28 | ;             input:  array of:    tag | VR | flag | value | 
|---|
| 29 | ;             input:  scalar:      batch-identifier, see below | 
|---|
| 30 | ;             input:  scalar:      max # entities in response | 
|---|
| 31 | ;             output: array of:    header = # entities total | # in current batch | 
|---|
| 32 | ;                    followed by   tag | VR | flag | value | 
|---|
| 33 | ;                             or   <start sequence> | 
|---|
| 34 | ;                             or   <end sequence> | 
|---|
| 35 | ; | 
|---|
| 36 | ;          Batch-identifier: | 
|---|
| 37 | ;          There are four kinds of calls: | 
|---|
| 38 | ;           1. initial call | 
|---|
| 39 | ;              value of this parameter is "0" | 
|---|
| 40 | ;              RPC will create result-set and start a background process to | 
|---|
| 41 | ;              perform the query | 
|---|
| 42 | ;           2. "are you ready" call | 
|---|
| 43 | ;              value of this parameter is "n|0" | 
|---|
| 44 | ;              where 'n' identifies the result-set | 
|---|
| 45 | ;              RPC will check if the query is ready and, when available, will | 
|---|
| 46 | ;              return "initial batch" of responses | 
|---|
| 47 | ;           3. continuation call | 
|---|
| 48 | ;              value of this parameter is "n|m" | 
|---|
| 49 | ;              where 'n' identifies the result-set | 
|---|
| 50 | ;              where 'm' identifies the sequence | 
|---|
| 51 | ;              number of the first item to be returned RPC will return | 
|---|
| 52 | ;              next batch of responses | 
|---|
| 53 | ;           4. final call | 
|---|
| 54 | ;              value of this parameter is "n|-1" | 
|---|
| 55 | ;              where 'n' identifies the result-set | 
|---|
| 56 | ;              RPC will not return any responses but clean-up any storage used | 
|---|
| 57 | ;              for result-set | 
|---|
| 58 | ; | 
|---|
| 59 | ;          Suggested values for second parameter: | 
|---|
| 60 | ;            0 for initial call | 
|---|
| 61 | ;           -1 for final call | 
|---|
| 62 | ;           >0 (sequence number of first entity to be returned) | 
|---|
| 63 | ;              for continuation call | 
|---|
| 64 | ;          Result-set will also have a "time stamp of last access" | 
|---|
| 65 | ;          so that an overall clean-up process can get rid of | 
|---|
| 66 | ;          obsolete result-sets. | 
|---|
| 67 | ; | 
|---|
| 68 | ; Step 3: The application interprets the results from the RPC | 
|---|
| 69 | ;         and will ask VistA which images belong to a | 
|---|
| 70 | ;         study-UID: | 
|---|
| 71 | ; | 
|---|
| 72 | ;           RPC name: MAG STUDY UID QUERY | 
|---|
| 73 | ;             input:  scalar       study uid | 
|---|
| 74 | ;             input:  scalar       flag: include routed copies in result | 
|---|
| 75 | ;             input:  scalar       "my location" identifier | 
|---|
| 76 | ;             output: array of:    header = # of entities in response | 
|---|
| 77 | ;                                  image# | path+file name | username | password | 
|---|
| 78 | ; | 
|---|
| 79 | ;         Do we want to return the username and password in each | 
|---|
| 80 | ;         result, or do we want two separate RPC calls: one to | 
|---|
| 81 | ;         get path+filename for each file, and one that returns | 
|---|
| 82 | ;         the username and password given a path? | 
|---|
| 83 | ; | 
|---|
| 84 | ; Step 4: The application will create new DICOM entities to transmit | 
|---|
| 85 | ;         to its client. It has the information to access the | 
|---|
| 86 | ;         image files that exist on VistA (either .dcm files or | 
|---|
| 87 | ;         .txt + .tga pairs). It needs to ask VistA for the | 
|---|
| 88 | ;         current and correct information to place in the headers | 
|---|
| 89 | ;         of the DICOM entities to be transmitted: | 
|---|
| 90 | ; | 
|---|
| 91 | ;           RPC name: MAG IMAGE CURRENT INFO | 
|---|
| 92 | ;             input:  scalar       image # | 
|---|
| 93 | ;             output: array of:    header = # of entities in response | 
|---|
| 94 | ;                                  tag | VS | flag | value | 
|---|
| 95 | ; | 
|---|
| 96 | ;         Do we need an additional input array to specify the | 
|---|
| 97 | ;         list of data-fields to be returned? | 
|---|
| 98 | ; | 
|---|
| 99 | ; Non-supported tags for Query/Retrieve | 
|---|
| 100 | ; 0008,1110  O  Referenced Study Sequence | 
|---|
| 101 | ; 0008,1150  O  >Referenced SOP Class UID | 
|---|
| 102 | ; 0008,1155  O  >Referenced SOP Instance UID | 
|---|
| 103 | ; 0008,1120  O  Referenced Patient Sequence | 
|---|
| 104 | ; 0008,1150  O  >Referenced SOP Class UID | 
|---|
| 105 | ; 0008,1155  O  >Referenced SOP Instance UID | 
|---|
| 106 | ; 0010,1020  O  Patient's Size   [field not populated] | 
|---|
| 107 | ; 0010,1030  O  Patient's Weight [field not populated] | 
|---|
| 108 | ; 0020,1070  O  Other Study Numbers | 
|---|
| 109 | ; 0020,1200  O  Number of Patient Related Studies | 
|---|
| 110 | ; 0020,1202  O  Number of Patient Related Series | 
|---|
| 111 | ; 0020,1204  O  Number of Patient Related Instances | 
|---|
| 112 | ; | 
|---|
| 113 | ; Supported tags | 
|---|
| 114 | ; 0008,0020  R  Study Date | 
|---|
| 115 | ; 0008,0030  R  Study Time | 
|---|
| 116 | ; 0008,0050  R  Accession Number | 
|---|
| 117 | ; 0010,0010  R  Patient's Name | 
|---|
| 118 | ; 0010,0020  R  Patient ID | 
|---|
| 119 | ; 0020,0010  R  Study ID | 
|---|
| 120 | ; 0020,000D  U  Study Instance UID | 
|---|
| 121 | ; | 
|---|
| 122 | ; 0008,0061  O  Modalities in Study | 
|---|
| 123 | ; 0008,0090  O  Referring Physician's Name | 
|---|
| 124 | ; 0008,1030  O  Study Description | 
|---|
| 125 | ; 0008,1032  O  Procedure Code Sequence | 
|---|
| 126 | ; 0008,0100  O  >Code Value | 
|---|
| 127 | ; 0008,0102  O  >Coding Scheme Designator | 
|---|
| 128 | ; 0008,0103  O  >Coding Scheme Version | 
|---|
| 129 | ; 0008,0104  O  >Code Meaning | 
|---|
| 130 | ; 0008,1060  O  Name of Physician(s) Reading Study | 
|---|
| 131 | ; 0010,0030  O  Patient's Birth Date | 
|---|
| 132 | ; 0010,0032  O  Patient's Birth Time [probably always blank] | 
|---|
| 133 | ; 0010,0040  O  Patient's Sex | 
|---|
| 134 | ; 0010,1000  O  Other Patient IDs | 
|---|
| 135 | ; 0010,1001  O  Other Patient Names | 
|---|
| 136 | ; 0010,1010  O  Patient's Age | 
|---|
| 137 | ; 0010,2160  O  Ethnic Group | 
|---|
| 138 | ; 0010,2180  O  Occupation | 
|---|
| 139 | ; 0010,21B0  O  Additional Patient History | 
|---|
| 140 | ; 0020,1206  O  Number of Study Related Series | 
|---|
| 141 | ; 0020,1208  O  Number of Study Related Instances | 
|---|
| 142 | ; 4008,010C  O  Interpretation Author | 
|---|
| 143 | ; | 
|---|
| 144 | ; Problem cases left over: | 
|---|
| 145 | ; 0008,0062  O  SOP Classes in Study [supported?] | 
|---|
| 146 | ; 0008,1080  O  Admitting Diagnoses Description | 
|---|
| 147 | ; 0010,4000  O  Patient Comments | 
|---|
| 148 | ; | 
|---|