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The Siemens Biograph Vision PET/MR represents the highest level of integrated PET-MRI technology currently available. Its fully digital PET detectors, ultra-fast TOF technology, and advanced Q.Clear reconstruction are seamlessly combined with a top-tier 3T MRI system, providing unparalleled multi-parametric and synchronous imaging capabilities for neuroscience, precision oncology (especially soft tissue and CNS tumors), and advanced research. Although associated with high cost and operational complexity, it offers irreplaceable value in addressing specific complex clinical and research problems by delivering precisely matched spatiotemporal molecular, functional, and anatomical information.
1. Individuals with a history of tumors or a family history of tumors
In addition to maintaining a healthy lifestyle, regular PET/MR examinations are recommended to develop the habit of timely evaluation of overall physical condition.
2. Individuals undergoing health screening
Populations such as high-level professionals, those under significant life stress, and individuals experiencing physical overexertion are advised to undergo regular PET/MR examinations to screen for potential health risks.
3. Patients with cardiovascular diseases
PET/MR can determine myocardial viability and provide an objective basis for deciding whether surgery is required. It is an essential examination prior to treatments such as myocardial infarction revascularization and blood flow reconstruction, and can also support treatment evaluation.
4. Patients with neurological disorders
For localization of epileptic foci, PET/MR is superior to other imaging modalities; it also serves as a unique imaging method for diagnosing conditions such as depression, Alzheimer's disease, and Parkinson's disease.
1. Appointment
Schedule the examination time (PET/MR and PET/CT appointments can be made within <24 hours; telephone booking is available).
2. Registration
Receive instructions and precautions, measure height, weight, and blood glucose, and sign the informed consent form.
3. Medical History Collection
Please bring previous imaging data such as CT, MRI, and ultrasound, as well as laboratory and clinical treatment records. The physician will inquire about the condition and treatment history.
4. Radiotracer Injection
An intravenous line is first established (in the injection room), followed by administration of the tracer at the injection window. After injection, rest quietly for 45--60 minutes.
5. Scanning
Prepare as required, including appropriate water intake before the examination. Empty the bladder, remove all metal objects, and cooperate during the scan. The duration is generally 40--60 minutes; fast sequences may take approximately 30 minutes.
6. Post-scan Waiting (in the resting room)
Wait in the resting area for notification. The physician will perform a preliminary image assessment, and you may leave only after being informed. Some individuals may require delayed scanning and should wait an additional 30--60 minutes.
7. After the Examination
Drink more water and urinate frequently to promote tracer excretion. Avoid close contact with sensitive populations (pregnant women and children) on the day of examination. Collect the report at the designated time using the appointment form.
1. Integrated Synchronous Scanning
The world's first integrated PET/MR system, with PET detectors embedded between MRI radiofrequency coils, enabling isocentric and same-volume synchronous scanning of PET and MRI.
2. High Soft-Tissue Resolution
MRI provides superior soft-tissue resolution compared with CT, clearly demonstrating lesion details and supplying anatomical information for precise tumor diagnosis.
3. No Ionizing Radiation
MRI involves no X-ray radiation exposure, making it particularly suitable for children and patients requiring multiple follow-up examinations.
4. Superior Spatial Resolution
Simulation studies confirm that the Siemens mMR system demonstrates excellent spatial resolution performance with the lowest scatter fraction.
5. Early Detection of Micro-Lesions
The combination of high sensitivity and specificity enables early detection of small tumor lesions, improving diagnostic accuracy.
6. Rapid Whole-Body Acquisition
Whole-body acquisition can be completed within 50 minutes, with dedicated high-resolution sequences for major organs of the head, neck, chest, abdomen, and pelvis.
7. Multi-Disciplinary Clinical Applications
Widely applied in the early screening and diagnosis of malignant tumors, neurological disorders, and cardiovascular diseases.
8. Research Support Capability
Equipped with specialized coils and sequences to support clinical research and advanced tumor screening requirements.
