| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4ddcb273a108a5d8472b335280098e06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ec24cf853e108d093de2fd7fa37c5d9c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-113
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N2005-1062
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-1135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-541
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N5-1037
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N5-1064
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N5-1068
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N2005-1061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N2005-1059 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N5-1049
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-032 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61N5-10 |
| filingDate |
2007-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e04ec7166a10d68904d069d9c6afb78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78f050666bd55be25a67f5c96e73fa0b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71714f881689e5b4de6d2db4fbf211e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d26076cae3f627aa89f7f88db7fb9c77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e7f4616326466282f1ece0c67773a917
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5a789c1295e8750ea808982584f246b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be1d7ddad977f7c44ad404d3fe6dfeb4 |
| publicationDate |
2009-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2046449-A2 |
| titleOfInvention |
Four-dimensional (4d) image verification in respiratory gated radiation therapy |
| abstract |
A method for four-dimensional (4D) image verification in respiratory gated radiation therapy, includes: acquiring 4D computed tomography (CT) images, each of the 4D CT images representing a breathing phase of a patient and tagged with a corresponding time point of a first surrogate signal (102); acquiring fluoroscopic images of the patient under free breathing, each of the fluoroscopic images tagged with a corresponding time point of a second surrogate signal (110); generating digitally reconstructed radiographs (DRRs) for each breathing phase represented by the 4D CT images (116); generating a similarity matrix to assess a degree of resemblance in a region of interest between the DRRs and the fluoroscopic images (117); computing a compounded similarity matrix by averaging values of the similarity matrix across different time points of the breathing phase during a breathing period of the patient (118); determining an optimal time point synchronization between the DRRs and the fluoroscopic images by using the compounded similarity matrix (120); and acquiring a third surrogate signal and turning a treatment beam on or off according to the optimal time point synchronization (128). |
| priorityDate |
2006-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |