[{"data":1,"prerenderedAt":89},["ShallowReactive",2],{"wiki-item-en-ct-scan":3,"media-slots-en":31},{"slug":4,"category":5,"categoryName":6,"title":7,"summary":8,"toc":9,"ymyl":28,"hasAlternate":30,"updatedAt":15},"ct-scan","technology","Treatment Technologies","Computed Tomography (CT)","Computed Tomography (CT) is an imaging technique that uses X-rays and computer processing to generate cross-sectional images of the body.",[10,16,20,24],{"key":11,"title":12,"html":13,"icon":14,"updatedAt":15},"","Overview","\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">Computed Tomography (CT) is an imaging technique that uses X-rays and computer processing to generate cross-sectional images of the body. Compared with conventional X-ray examinations, CT provides more detailed information about the location, size, shape, and extent of tumors.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">CT is one of the most commonly used imaging examinations in oncology and plays an important role in cancer detection, diagnosis, staging, treatment assessment, recurrence monitoring, and long-term follow-up.\u003C\u002Fspan>\u003C\u002Fp>","⚕️","2026-10-09",{"key":11,"title":17,"html":18,"icon":19,"updatedAt":15},"Indications","\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">CT is widely used in both solid tumors and hematologic malignancies.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">For solid tumors such as lung, liver, gastric, colorectal, and pancreatic cancers, CT helps identify primary tumors, evaluate local invasion, and detect distant metastases.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">For lymphoma, CT is commonly used to assess lymph node involvement and evaluate organs such as the liver and spleen. It is an important tool for disease staging and response assessment.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">CT is also frequently used during and after chemotherapy, targeted therapy, immunotherapy, CAR-T therapy, or hematopoietic stem cell transplantation to evaluate treatment response and monitor for relapse.\u003C\u002Fspan>\u003C\u002Fp>","🩹",{"key":11,"title":21,"html":22,"icon":23,"updatedAt":15},"Examination Process","\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">Before the examination, the physician will determine whether a contrast-enhanced CT scan is needed. Contrast-enhanced CT uses intravenous contrast material to improve visualization of tumors and blood vessels.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">During the procedure, the patient lies on a scanning table while images are acquired. Most examinations take only a few minutes, although contrast-enhanced studies may require additional time.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">Some abdominal or pelvic CT examinations may require fasting or drinking water beforehand, depending on the clinical indication and institutional protocols.\u003C\u002Fspan>\u003C\u002Fp>","🩺",{"key":11,"title":25,"html":26,"icon":27,"updatedAt":15},"Considerations and Limitations","\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">CT is fast and widely available but involves exposure to ionizing radiation, so imaging should be performed when clinically appropriate.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">Iodinated contrast agents used in enhanced CT studies may cause allergic reactions, and patients with impaired kidney function may require additional evaluation before contrast administration.\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">\u003Cbr\u002F>\u003C\u002Fspan>\u003C\u002Fp>\u003Cp style=\"margin: 7px 0;\">\u003Cspan style=\"font-size: 15px;\">CT also has limitations in evaluating certain early lesions, bone marrow involvement, and soft tissue details. In some situations, MRI, PET-CT, ultrasound, or pathology may be needed to provide additional information.\u003C\u002Fspan>\u003C\u002Fp>","📋",{"author":11,"reviewedBy":11,"lastReviewed":11,"datePublished":11,"citations":29,"disclaimer":11},[],false,{"about.hero":32,"about.video":34,"about.video-cover":36,"charity.hero":38,"contact.hero":40,"evidence.hero":42,"footer.qr-blood":44,"footer.qr-mini":46,"footer.qr-official":48,"footer.qr-solid":50,"guide.hero":52,"home.hero":54,"home.news-featured":56,"home.story-featured":58,"news.hero":60,"news.lead":62,"news.thumb":64,"stories.cover":69,"stories.hero":76,"stories.lead":78,"wiki.cat":80,"wiki.detail-hero":85,"wiki.hero":87},[33],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fpc_banner\u002F%E5%85%B3%E4%BA%8E%E5%8D%9A%E5%8C%BB%E5%90%8C%E8%A1%8C_en.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[35],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fabout\u002F%E9%A3%9E%E4%B9%A620260729-233252_compressed.mp4",[37],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fabout\u002F%E9%A3%9E%E4%B9%A620260729-233252_frame1.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[39],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fpc_banner\u002F%E5%85%AC%E7%9B%8A%E8%B5%84%E6%BA%90%E9%93%BE%E6%8E%A5_en.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[41],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fbytx-pc-uploads\u002F2026\u002F08\u002Fbde8f2354d29ffca7dcfe395ef4711b2.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[43],"https:\u002F\u002Fwww.yyhmedical.com\u002Fimages\u002Fevidence\u002Fhero.jpg",[45],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fabout\u002Fqr-blood.png?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[47],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fabout\u002Fqr-mini.png?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[49],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fabout\u002Fqr-official.png?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[51],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fabout\u002Fqr-solid.png?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[53],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fpc_banner\u002F%E7%96%BE%E7%97%85%E7%9F%A5%E8%AF%86%E5%BA%93_en.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[55],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fpc_banner\u002F%E9%A6%96%E9%A1%B5_en.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[57],"\u002Fimages\u002Fhome\u002Fnews-featured.jpg",[59],"\u002Fimages\u002Fhome\u002Fstory-featured.jpg",[61],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fpc_banner\u002F%E6%82%A3%E5%8F%8B%E5%85%B3%E6%B3%A8_en.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[63],"\u002Fimages\u002Fnews\u002Flead.jpg",[65,66,67,68],"\u002Fimages\u002Fnews\u002Fn1.jpg","\u002Fimages\u002Fnews\u002Fn2.jpg","\u002Fimages\u002Fnews\u002Fn3.jpg","\u002Fimages\u002Fnews\u002Fn4.jpg",[70,71,72,73,74,75],"\u002Fimages\u002Fstories\u002Fs1.jpg","\u002Fimages\u002Fstories\u002Fs2.jpg","\u002Fimages\u002Fstories\u002Fs3.jpg","\u002Fimages\u002Fstories\u002Fs4.jpg","\u002Fimages\u002Fstories\u002Fs5.jpg","\u002Fimages\u002Fstories\u002Fs6.jpg",[77],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fpc_banner\u002F%E6%82%A3%E8%80%85%E6%95%85%E4%BA%8B_en.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",[79],"\u002Fimages\u002Fstories\u002Flead.jpg",[81,82,83,84],"\u002Fimages\u002Fwiki\u002Fcat-1.jpg","\u002Fimages\u002Fwiki\u002Fcat-2.jpg","\u002Fimages\u002Fwiki\u002Fcat-3.jpg","\u002Fimages\u002Fwiki\u002Fcat-4.jpg",[86],"\u002Fimages\u002Fwiki\u002Fdetail-hero.jpg",[88],"https:\u002F\u002Fgaobo-byh-h5.oss-cn-beijing.aliyuncs.com\u002Fstatic\u002Fpc_banner\u002F%E6%8A%97%E7%99%8C%E7%99%BE%E7%A7%91_en.jpg?x-oss-process=image\u002Fresize,limit_1,w_1600\u002Fquality,q_80\u002Fformat,webp",1792294353925]