CN114066969B - 一种医学图像分析方法以及相关产品 - Google Patents
一种医学图像分析方法以及相关产品 Download PDFInfo
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- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
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Abstract
Description
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CN116798636B (zh) * | 2022-03-14 | 2024-03-26 | 数坤(北京)网络科技股份有限公司 | 医学诊断方法以及相关设备 |
CN116798596A (zh) * | 2022-03-14 | 2023-09-22 | 数坤(北京)网络科技股份有限公司 | 一种信息关联方法、装置、电子设备和存储介质 |
CN114648514B (zh) * | 2022-03-30 | 2022-11-29 | 中国人民解放军总医院第二医学中心 | 一种脑动脉定位提取方法、装置、电子设备及存储介质 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101923713A (zh) * | 2010-08-04 | 2010-12-22 | 中国科学院自动化研究所 | 一种提取冠状动脉血管中心线的方法 |
WO2017037287A1 (en) * | 2015-09-04 | 2017-03-09 | Katholieke Universiteit Leuven | Method and device for identifying vascular connectivity of an image |
CN110176013A (zh) * | 2019-05-29 | 2019-08-27 | 数坤(北京)网络科技有限公司 | 血管分割方法、装置、电子设备及存储介质 |
CA3036003A1 (en) * | 2018-03-07 | 2019-09-07 | Mg Stroke Analytics Inc. | System and methods for assessing presence of large vessel occlusion to aid in transfer decision-making for endovascular treatment in patients with acute ischemic stroke |
CN111528845A (zh) * | 2020-04-16 | 2020-08-14 | 北京康兴顺达科贸有限公司 | 单侧大脑中动脉重度狭窄/闭塞的asl图像处理方法 |
CN111627508A (zh) * | 2020-04-29 | 2020-09-04 | 数坤(北京)网络科技有限公司 | 一种医学影像的解读方法、装置及计算机可读介质 |
CN112686891A (zh) * | 2021-03-09 | 2021-04-20 | 数坤(北京)网络科技有限公司 | 一种影像处理的方法、装置及计算机可读介质 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7819812B2 (en) * | 2004-12-15 | 2010-10-26 | Neuropace, Inc. | Modulation and analysis of cerebral perfusion in epilepsy and other neurological disorders |
US11880989B2 (en) * | 2014-04-25 | 2024-01-23 | Thornhill Scientific Inc. | Imaging abnormalities in vascular response |
-
2021
- 2021-11-16 CN CN202111351524.1A patent/CN114066969B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101923713A (zh) * | 2010-08-04 | 2010-12-22 | 中国科学院自动化研究所 | 一种提取冠状动脉血管中心线的方法 |
WO2017037287A1 (en) * | 2015-09-04 | 2017-03-09 | Katholieke Universiteit Leuven | Method and device for identifying vascular connectivity of an image |
CA3036003A1 (en) * | 2018-03-07 | 2019-09-07 | Mg Stroke Analytics Inc. | System and methods for assessing presence of large vessel occlusion to aid in transfer decision-making for endovascular treatment in patients with acute ischemic stroke |
CN110176013A (zh) * | 2019-05-29 | 2019-08-27 | 数坤(北京)网络科技有限公司 | 血管分割方法、装置、电子设备及存储介质 |
CN111528845A (zh) * | 2020-04-16 | 2020-08-14 | 北京康兴顺达科贸有限公司 | 单侧大脑中动脉重度狭窄/闭塞的asl图像处理方法 |
CN111627508A (zh) * | 2020-04-29 | 2020-09-04 | 数坤(北京)网络科技有限公司 | 一种医学影像的解读方法、装置及计算机可读介质 |
CN112686891A (zh) * | 2021-03-09 | 2021-04-20 | 数坤(北京)网络科技有限公司 | 一种影像处理的方法、装置及计算机可读介质 |
Non-Patent Citations (7)
Title |
---|
Comparison of CT angiography collaterals for predicting target perfusion profile and clinical outcome in patients with acute ischemic stroke;Shan-shan Lu等;《European Radiology》;20190214;第29卷;Shan-shan Lu等 * |
丙型肝炎病毒NS5B区基因耐药多态性研究;阳光;《中国优秀硕士学位论文全文数据库 (医药卫生科技辑)》;20190815(第8期);第E061-12页 * |
以脑CT灌注的峰值时间作为脑CTA扫描延时的应用;梁琰等;《实用放射学杂志》;20070730;第23卷(第4期);第540-541页 * |
多时相头CTA在急性缺血性脑卒中侧支循环影像检查中的应用;赵继军等;《河北医药》;20181224;第40卷(第24期);第3774-3776,3780页 * |
头颈部CTA在诊断脑血管性病变的诊断价值;张建军;《中国保健营养(上旬刊)》;20140608(第12期);第7463-7463页 * |
脑缺血灶和脑梗死的CT、MRI图像比较分析;曾令延;《中国医药导刊》;20120915;第14卷(第9期);第1513+1515页 * |
颅脑动态灌注CT成像射线剂量的减少:扫描频率对脑血流量、脑血容量及平均通过时间测量的影响;M. Wiesmann等;《国际医学放射学杂志》;20090115;第32卷(第1期);第103页 * |
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