山东第一医科大学：《放射治疗剂量学》课程教学资源（PPT专题讲稿）放射治疗剂量学 Brife Introduction of Radiation Therapy and radiation dosimetry

Brife Introduction of Radiation Therapy and radiation dosimetry Wang Pengcheng 2008

Brife Introduction of Radiation Therapy and radiation dosimetry Wang Pengcheng 2008

Radiation Therapy:the Myths For many lay-people,the word radiation conjures a host of myths and misconceptions

Radiation Therapy：the Myths ◼ For many lay-people, the word radiation conjures a host of myths and misconceptions

Radiation Therapy:the Myths MY GOODNESS....WHY,YOU'VE GROWN A FOOT SINCE I SAW YoU LAST

Radiation Therapy：the Myths

Radiation Therapy:the Myths n wh M

Radiation Therapy：the Myths

Radiation Therapy:the Myths job but will rnament.1C. CT scans in ent Ith,but many David Brenner of Columbia By Steve Sternberg says."Most people got a ten gton theater: USA TODAY dredth of the dose of a CT. ers what they Each year,about 1.6 million children Both studies appear in in examining in the USA get CT scans to the head and American Joun abdomen and about 1,500 of those nation's led ey.6D. will die later in life of radiation-induced cancer,according to research out today. first toe What's more,CT or computed to- induced fatal cancerom scans.Until a decade ago, tedduchlren tono caly calibrated fornhe absorb two to six times the radiation needed to produce clear images,a sec- still.Today's scanners spi ond study shows.These doses are"way patient in seconds,provi bigger than the sorts of doses that peo- tions,or"slices,"of anat ple at Three Mile Island were getting. Doctors use CT scans

Radiation Therapy：the Myths

Radiation Therapy Myths The therapy is believed to burn recipients. The therapy is believed to make them radioactive (only true with temporary internal implants). Often viewed as painful. Often viewed as a last resort. Nursing needs to teach patients and their family members about radiation therapy before it begins to relieve their fears and ensure their compliance

Radiation Therapy : Myths ◼ The therapy is believed to burn recipients. ◼ The therapy is believed to make them radioactive (only true with temporary internal implants). ◼ Often viewed as painful. ◼ Often viewed as a last resort. ◼ Nursing needs to teach patients and their family members about radiation therapy before it begins to relieve their fears and ensure their compliance

What is true of Radiation Therapy The use of ionizing radiation is to interrupt cellular growth. Is frequently done as an outpatient procedure so we must stress self-care. This treatment modality may be chosen when the treatment goal is curative,such as in Hodgkin's disease, testicular seminomas,localized cancer of the head and neck,and cancers of the uterine cervix

What is true of Radiation Therapy ◼ The use of ionizing radiation is to interrupt cellular growth. ◼ Is frequently done as an outpatient procedure so we must stress self-care. ◼ This treatment modality may be chosen when the treatment goal is curative, such as in Hodgkin’s disease, testicular seminomas, localized cancer of the head and neck, and cancers of the uterine cervix

Radiation Therapy Is used to control malignant disease. when a tumor cannot be removed surgically. local nodal metastasis is present. prophylactically to prevent leukemic infiltration to the brain or spinal cord. Palliative irradiation is frequently used to relieve symptoms of metastatic disease,especially when it has spread to brain,bone,or soft tissue

Radiation Therapy ◼ Is used to control malignant disease. ◼ when a tumor cannot be removed surgically. ◼ local nodal metastasis is present. ◼ prophylactically to prevent leukemic infiltration to the brain or spinal cord. ◼ Palliative irradiation is frequently used to relieve symptoms of metastatic disease, especially when it has spread to brain, bone, or soft tissue

Definition of Radiation Therapy Definition: 利用射线对肿瘤及其侵犯底组织进行一定 剂量底局部照射，以控制肿瘤细胞生长 底物理治疗技术。 Beam available all beam:xynβap

一、Definition of Radiation Therapy Definition： 利用射线对肿瘤及其侵犯底组织进行一定 剂量底局部照射，以控制肿瘤细胞生长 底物理治疗技术。 Beam available all beam: xγπβαp…

Goals of Radiation Therapy Cure To eradicate the disease ■Control Control the growth and the spread of the cancer ■Prophylaxis(预防) To control microscopic disease Palliation To reduce complications or symptoms of the cancer.May be used to control pain

Goals of Radiation Therapy ◼ Cure ◼ To eradicate the disease ◼ Control ◼ Control the growth and the spread of the cancer ◼ Prophylaxis（预防） ◼ To control microscopic disease ◼ Palliation ◼ To reduce complications or symptoms of the cancer. May be used to control pain