DSA: Digital subtraction angiography (Digital subtraction angiography) referred to as DSA, i.e., angiographic images through digital processing, the unwanted tissue images deleted, only to retain the vascular image, this technology is called digital subtraction technology, which is characterized by a clear image, high-resolution, for the observation of vascular lesions, vascular stenosis localization measurement, diagnosis and intervention. This technology is called digital subtraction technology, which is characterized by clear image and high resolution, and provides real three-dimensional images for observation of vascular lesions, localization and measurement of stenosis, diagnosis and interventional therapy, and provides necessary conditions for various interventional therapy. It is mainly applicable to the examination and treatment of systemic vascular diseases and tumors. The application of DSA for interventional therapy has opened up a new field for the diagnosis and treatment of cardiovascular diseases. Mainly used in coronary heart disease, arrhythmia, valvular disease and congenital heart disease diagnosis and treatment.
PET: (PET) is Positron Emission Tomography (Positron Emission Tomography) is a molecular imaging device for functional metabolism imaging. PET examination uses positron nuclide as a tracer to understand the functional metabolism status of the lesion through the lesion's uptake of the tracer to make a correct diagnosis of the disease; however, PET is not the only method for diagnosing cardiovascular disease, but it is the most effective way of diagnosing cardiovascular disease. PET uses positron nucleotide as a tracer to understand the functional metabolic status of the lesion through the uptake of tracer at the lesion site, so as to make a correct diagnosis of the disease.
CT is a computerized tomography (CT) scanner, which utilizes X-rays to examine the human body, and we are all familiar with it, but different grades of CT scanners have different programs.
PET/CT: Both PET and CT functions, but it is by no means a simple superimposition of the two functions, because PET and CT complement each other, 1 + 1 ＞ 2. PET can show the pathophysiological characteristics of the lesion, easier to find the lesion; CT can accurately locate the lesion, showing the lesion structural changes. In addition to PET and CT, PET/CT's unique fusion image, which integrates PET and CT images, can simultaneously reflect the pathophysiological changes and morphological and structural changes of the lesions, which significantly improves the accuracy of diagnosis.
PET-CT is indeed a world-leading device, which is mainly used in the accurate clinical staging of tumors, helping doctors to make individualized treatment plans, searching for primary foci, evaluating the efficacy of treatment, formulating radiotherapy plans, determining the site of biopsy, diagnosing the degree of malignancy of the tumor, etc. After the diagnosis of a tumor is confirmed, the treatment will be carried out. Treatment after diagnosis.
From the website of Bayi Hospital, I hope it will be useful for you:
Which groups of people are generally suitable for PET/CT examination?
One, tumor patient population PETCT can make early diagnosis and differential diagnosis of tumor, identify whether the tumor has recurrence or not, stage and re-stage the tumor, search for the primary and metastatic foci of the tumor, guide and determine the treatment plan of the tumor, and evaluate the therapeutic effect. Among the tumor patients, a considerable number of patients have changed their treatment plan due to clear diagnosis after PETCT examination; PETCT can accurately evaluate the efficacy of treatment, adjust the treatment plan in time and avoid ineffective treatment. Overall, it greatly saves medical costs and strives for precious treatment time.
Second, the health check population PETCT is also a means of health check, it can complete a body imaging test, early detection of tumors and heart, brain diseases that seriously endanger people's health, to achieve the purpose of early treatment of disease prevention.
Three, the cranial nerve patient population PETCT can accurately locate epileptic foci, but also diagnose depression, Alzheimer's disease, Parkinson's disease and other diseases of the unique examination method. The treatment of epilepsy is one of the world's top ten medical problems, the difficulty lies in the accurate localization of epileptogenic foci, PETCT makes this medical problem solved. After PETCT guidance, the use of X-knife or γ-knife treatment, received a very good therapeutic effect.
Four, cardiovascular patients PETCT can identify whether the myocardium is alive, for whether the need for surgery to provide an objective basis. Currently, PETCT myocardial imaging is recognized as the "gold standard" for evaluating myocardial viability, and it is a necessary examination before treatment of myocardial infarction, such as re-vascularization (hemodialysis), and it provides a basis for the evaluation of radiotherapy.PET-CT is also valuable in the diagnosis of early coronary artery disease.
These kinds of equipment, Nanjing eighth hospital have, PET / CT examination now in Nanjing eighth hospital military oncology center whole body price of more than seven thousand. It seems to have been the lowest price in Nanjing, on the official website of the eighth hospital can make an appointment.