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3-phase bone scan technique will not cause any side effects as well as complications for the patient. The radioactive tracer will be eliminated from the body within 24 hours. In rare cases, it takes 3 days for all of this radiation to be eliminated.
1. What is 3-phase bone scan?
Bone scintigraphy is an imaging test belonging to nuclear medicine, this technique helps diagnose and monitor a number of bone diseases. Therefore, you will be ordered to have a bone scan in the case of unexplained bone pain, infection, or bone trauma that cannot be seen on standard radiographs.
Three-phase bone scintigraphy means three-phase imaging: Perfusion, organization, and late phase to assist the physician in the diagnosis and differentiation of bone lesions. However, this method is contraindicated for pregnant or lactating women.
2. Is 3-phase bone scan dangerous?
Accordingly, 3-phase bone scintigraphy produces many images on radionuclide scanners, however, they have a very low radiation exposure, even smaller than that of CT scanning.
Therefore, 3-phase bone scan technique will not cause any side effects as well as complications for the patient. The radioactive tracer will be eliminated from the body within 24 hours. In rare cases, it takes 3 days for all of this radiation to be eliminated.
3. 3-phase bone scintigraphy procedure
The 3-phase bone scintigraphy process is performed as follows:
Step 1: Prepare radioactive drugs, measuring recorders, tracer compounds, radioisotopes, syringes, drug collection needles, needles, infusion lines , cotton, alcohol, adhesive tape, gloves, mask, hat, medical gown, lead shirt, lead glasses, lead syringe cover, personal dosimeter. Step 2: Extraction - Mark the radioactive drug by extracting 99mTc from the 99Mo-99Tc extraction flask. Then inject 99mTc-pertechnetate solution into the MDP vial, shake to dissolve, incubate for 20-30 minutes at room temperature. Finally, aspirate a dose of 99mTc-MDP 15-20 mCi for each patient. Step 3: To inject radioactive drugs and record measurements, the doctor instructs the patient to lie down, the receiver of the scanner is located at the suspected injury site. After that, a dose of 99mTc-MDP 15-20 mCi will be administered intravenously. Step 4: Record perfusion phase measurement with animation right after injection 2s/image for 1 minute. The blood lake phase recorded static images after the perfusion phase 1 min/image for 5 min. Finally, there is a late phase measurement after 2-3 hours of injection, static image recording in the lesion area and whole body recording.
Kỹ thuật xạ hình xương 3 pha không gây ra bất kỳ tác dụng phụ nào cho người bệnh
4. Meaning of 3-phase bone scan results
Results of 3-phase bone scintigraphy are normal:
The image and position of the measured bone are reconstructed on 3 planes: Sagittal, axial, coronal. The radiopharmaceuticals were also uniformly and evenly concentrated and there were no vacancy or abnormal radioactivity elevations. Abnormal 3-phase bone scan results:
Abnormal 3-phase bone scan when there is an image of decreased, increased or defective radioactivity compared to surrounding bone. Osteomyelitis in case results with radiopharmaceutical lesions concentrated in diffuse form or localized in the blood lake phase, perfusion phase and localized in bone in the late phase. If the 3-phase bone scintigraphy shows that the radiopharmaceuticals are concentrated or diffuse in the perfusion phase, in the blood lake phase and not in the bone in the late phase, the patient may have soft tissue inflammation. In summary, 3-phase bone scintigraphy technique is very safe, there are almost no complications during and after imaging. In rare cases, allergic reactions to radiopharmaceuticals have occurred. The treatment will be based on the extent to which anti-allergic drugs are used for the patient.
To get accurate results, the patient needs to go to the hospital to perform 3-phase bone scan technique. Currently, Vinmec International General Hospital is one of the leading prestigious hospitals in the country, trusted by a large number of patients for medical examination and treatment. Not only the physical system, modern equipment: 6 ultrasound rooms, 4 DR X-ray rooms (1 full-axis machine, 1 light machine, 1 general machine and 1 mammography machine) , 2 DR portable X-ray machines, 2 multi-row CT scanner rooms (1 128 rows and 1 16 arrays), 2 Magnetic resonance imaging rooms (1 3 Tesla and 1 1.5 Tesla), 1 room for 2 levels of interventional angiography and 1 room to measure bone mineral density.... Vinmec is also the place to gather a team of experienced doctors and nurses who will greatly assist in diagnosis and detection. early signs of abnormality in the patient's body. In particular, with a space designed according to 5-star hotel standards, Vinmec ensures to bring the patient the most comfort, friendliness and peace of mind.
Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.
