1 .Diagnose and make differential diagnosis between benign and malignant tumors.
Male,42yrs old,emptysis occasionally for 6 month,CT scan shows peripherallung cancer in upper lobe of left lung.
PET/CT confirms as pulmonary tuberculosis.After anti-tuberculosis the symptom relieves.
2.Distinguish the stage and substage of most tumors in the whole body and predic the orncome of the patient.
Male,44yrs old,obvious marasmus for 1 month.Multiple hepatic metastases are found in Ultrasound images.
Experimental result show elevated CEA levels and hepatic dysfunction.PET/CT images shows carcinoma in descending colon
(inferior polar plane of left kidney)with widespread hepatic metastases.
Male,50yrs old,left mammary mass for 3 years and left axillary lymphadenectasis for 3 months.
PET/CT impression Hypermetablic lesion in the left breast(upper inner quadrant)indicates breast cancer.
Pathological biopsy Breast infiltrative duct carcinoma.
3.Evaluate the clinical effect of chemotherapy and radiotherapy.
Male,12yrs old,patient was admitted as unknown cervicallymphadenectasis,and the diagnosis of lymphoma were proved by PET/CT images and biopsy.
After the chemotherapy,PET/CT is performed to evaluate the clinical effect,which indicating complete inhibition of cancer activity.
Nasopharyngeal poorly differentiated squamous cell carcinoma was confirmed in a 51yrs old male patient.
After local radiotherapy,the former lesion is absent.
4.Differentiate necrosis fibrosis,residue and recurrence of tumor after treatment.
A 54yrs old male with primary hepatic cell carcinoma was received interventional and chemotherapy 3 months ago.
PET/CT scan is performed to identify the nature of intrahepatic low-density lesion to be necrosis or tumor-recurrence.
PET/CT images shows marginal hypermetabolism suggesting tumor residue,and central metabolic defect being tumor necrosis,
with high-density iodine deposition in the left rim.
5 .Detect the primary neoplastic lesion.
A 67yrs old male patient is admitted as unknown multiple brain metastases with no abnormal chest CT findings PET/CT images
show hypermetabolic nodes in the rectum with irregular thickended intestinalwall,which indicating carcinoma of rectum.
6.Guide localization,paracentesis and biopsy.
7.Localization of radiotherapy in the tumor biological target area.
PET/CT is more sensitive to diagnose early lesion ofmost malignant tumor, such as all kinds
ofpulmonary tumor, lymphoma, colorectal cancer, esophageal cancer, breast cancer.
pancreatic cancer, oophoroma, cancer of bile duct, galibladder cancer, nasopharyngeal
carcinoma. caranoma of bladder, ampuUary carcinoma, laryngeal cancer, osteosarcoma.
soft tissue sarcoma, penis cancer, testis cancer. uterine cancer. cervical carcinoma, hepatic
carcinoma and hepatic metastases, renal cancer, prostate carcinoma. melanoma.
pheochromocytoma, thyroid carcinoma, gastric carcinoma and brain tumor. etc.
Because PET/CT scan most exactly reflects the biological feature of malignant tumor, it
provides the most precise 'biological target" for tumor radiotherapy Combined with our
synchronized-introduced most advanced 3D TPS radiotherapeutic system, essential
improvement has been made into the conventional tumor radiotherapeutic technology
Radio physician can make more rigorous scheme to minimize the radio therapeutic damage
and maximize its clinical effect according to the tumor growth and metabolism, even the
anoxia state of tumor and cellular proliferation state, provided by PET/CT fu se images,
which represent the developmental direction of most advanced international radiotherapy
and s-imbolize that the treatment of tumor has reached to molecular level.