Imaging examinations include ultrasound, film, imaging, CT, MRI, PET-CT, isotope, etc. All patients and clinicians get are films and report cards, on which clinicians diagnose diseases, so how to evaluate the diagnostic level of imaging departments and clinicians? This is how I look at it. The focus of different imaging examinations is different: CT scan is preferred for lung diseases; CT examination is the most accurate for kidney diseases; MRI is the most accurate for diagnosing liver hemangioma; PET-CT is the most accurate for determining whether there is systemic metastasis; the responsibility of choosing which examination method lies with the clinician. Secondly, whether the imaging examination is standardized or not: the difference of examination equipment, examination parameters and even the experience of the examiner will lead to the difference of examination results. For example, the results of ultrasound examination and barium examination of the gastrointestinal tract are greatly influenced by the experience of the operator. The responsibility lies with the physician or technician performing the imaging exam. Diagnostic level: With proper and scientific examination, accurate examination results can be obtained before the issue of diagnostic level can be discussed. I. Primary level: Assume that the lesion is like a fruit on a tree, and the tree is the examination data image,. 1, imaging doctors: look at the map to read, high level of veteran doctors can recognize a few more, low level of young doctors recognize a few less. 2, clinicians: only read the report, their own lack of judgment, you say there are several lesions is a few lesions, you say it is an apple is an apple. 3, primary patients: take a single test report, conceal test results, conceal medical history or laboratory tests to see the doctor. Second, intermediate level: 1, imaging doctors: know how to combine clinical and laboratory tests. Image performance is like the shape and color of the fruit, clinical and laboratory tests are like the trunk of the tree, the shape of the leaves, the smell and taste of the fruit. For example, “imaging + elevated AFP” diagnoses hepatocellular liver cancer, and “imaging + elevated CA19-9” diagnoses pancreatic cancer. If clinicians or patients do not provide relevant clinical and laboratory evidence, the diagnostic level of imaging doctors cannot be brought into play. 2. Clinicians: they can understand the imaging terminology and find the lesions mentioned in the report. Of course, if you encounter a junior level imaging physician who only diagnoses part of the lesion, it is difficult for the clinician’s diagnostic level to surpass the imaging report. 3. Intermediate level patients: provide the clinician and imaging physician with as complete and accurate examination results as possible, listen carefully and completely, and understand the clinical/imaging physician’s judgment. 3.Advanced level: 1.Imaging physician: good at recognizing diseases from the evolutionary pattern of diseases, old fruit farmer can infer the size and taste of fruits from seeds, seedlings, soil, fertilizer, cuttings, size, shape and color of fruits, etc. Senior imaging doctors can infer past medical history and future trends from current images and suggest reasonable plans for further diagnosis and treatment. Unlike specialist clinicians, imaging physicians recommend more objective and accurate treatment options. Such doctors are real experts in a certain disease and can be found but not sought. 2. Clinicians: They know how to recognize diseases from the evolution of diseases and the characteristics of different imaging performances. They do not stick to a certain examination or treatment response, and can adjust the diagnosis and treatment plan in time with the progress of the disease and the depth of the examination. 3.Advanced patients: understand the process of clinicians and imaging doctors in diagnosing diseases, value the role of imaging doctors to have accurate diagnosis before reasonable treatment, respect the adjustment of diagnosis and treatment plan, be good at communicating with clinicians and imaging doctors. Whether you are a clinician, imaging physician or patient, being a senior doctor/patient with professional ethics is our pursuit. It is the patient’s good fortune to meet a senior clinician/imaging physician with professional ethics, but the cooperation of educated patients is needed to get the most reasonable consultation and treatment.