When it comes to medical scanners, a common question is what the difference is between a CT and PET scan. NeuroLogica breaks down the technology.
正电子扫描(PET Scan)可显示细胞新陈代谢的情况,追踪早期癌细胞病变,电脑扫描(CT Scan)则可提供体内器官及肿瘤准确位置,两者结合可以检查病灶的形态、大小和新陈代谢率,有助于鉴别肿瘤。 虽然MRI和PET/CT Scan有助诊断癌症,但MRI检查期间,会产生噪音,可能会对人造成困扰和不安,而且空间受限,或会对幽闭恐惧症患者...
概括性地说下这三者区别（包括优缺点）PET是核素扫描，需要注射同位素药物，然后通过闪烁晶体探测，优点是...
This is about to invite our 'leading figure' in the field of nuclear medicine, who serves as the 'magic mirror' for tumor imaging. With a single PET/CT scan, one can complete a full body examination in a 'one-stop' manner. 什么是PET/C...
此前做了影像检查的概述(让癌症原形毕露的医学影像检查CT/MRI/PET等:概述篇),本文将重点介绍CT这一肿瘤医学领域重要的诊断和治疗辅助手段。 CT检查(Computed Tomography Scan) 这项检查的也被称为计算机断层扫描、CT扫描、CAT扫描以及螺旋CT等。CT扫描可产生内脏、骨骼、软组织和血管的详细图像。CT扫描时,可以重新...
PET是功能成像 CT MRI是解剖成像 PET：灵敏度高，特异性不强（就是说只要发现异常的能力较好，但是异常有可能是生理正常的现象所致），分辨率较低 CT：CT为无创性检查，检查方便、快捷。 密度分辨力高，密度相差很小的不同组织通过窗技术就能能被区分(提供2000Hu左右)。 CT能提供横断面图象，并可进行...
联影的uEXPLORER长轴PET/CT具有194 cm的轴向视野,可为全身提供约40倍的灵敏度增益[1]。30-45秒的快速采集即可获得传统PET/CT的图像质量[2]。在正常采集速度下,即使使用半剂量或1/10剂量,亦可获得符合诊断要求的图像质量,对于儿童或无法耐受静卧的患者尤其友好...
香港人工作忙碌,经常加班熬夜。要预防过劳猝死,市面上有不少体检计划,包括全身磁共振(MRI)、正电子及电脑双融扫描(PET/ CT Scan)等放射诊断项。香港人工作忙碌,经常加班熬夜。要预防过劳猝死,市面上有不少体检计划,包括全身磁共振(MRI)、正电子及电脑双融扫描(
Criteria for therapeutic efficacy and safety include significant amelioration of symptoms and, ideally, cure (i.e., patients' belief in effective improvement of symptoms and quality of life, durable impact on symptoms, verifiable subjective and objective changes); improved patient management (e.g., ...
A PET scan is able to measure vital functions such as blood flow, oxygen use, and blood sugar metabolism. It identifies organs and tissues that aren’t working as they should much earlier than a CT scan can find these issues. The wholePET scanprocess usually takes 2 hours to complete, lo...