This is an automatically translated article.
The article was professionally consulted by Specialist Doctor Nguyen Dinh Hung - Radiologist, Department of Diagnostic Imaging - Vinmec Hai Phong International General Hospital.Injections for joint pain will usually only require direct needle puncture. However, in difficult cases, small deep joints, it is necessary to have instructions for digital background removal to ensure accuracy and safety for the patient.
1. What is background removal digital capture?
Digital erasure scan, also known as DSA, is an endoscopic fluorescence technique, used in interventional radiology to give a clearer picture of blood vessels. The radiation-blocking structures are digitally removed from the image, so the blood vessels can be seen in detail.A DSA imaging system has the following structure:
X-ray generator; The image acquisition department; Image processing department; Display department. Thanks to this method, doctors can soon detect abnormal blood flow conditions, help diagnose and treat diseases related to blood circulation accurately, and plan surgery, accurately identify locations. hurt mind. Therefore, most cases of cardiovascular disease, especially myocardial infarction, are diagnosed and treated promptly;
Besides, the support of DSA makes endoscopic cardio-thoracic surgery less invasive. Reducing pain and bleeding, shortening the time of mechanical ventilation, resuscitation, ... for patients.
Chụp số hóa xóa nền hay còn gọi chụp DSA, là kỹ thuật nội soi huỳnh quang, được sử dụng trong X quang can thiệp nhằm cho hình ảnh của các mạch máu rõ hơn
2. Treatment of joint pain relief under the guidance of digital imaging to erase the background
When it comes to osteoarthritis pain, injections for joint pain usually only need direct needle puncture and no guidance is used. However, in some difficult cases, where small joints are located deep, there must be a means of guiding digital imaging to erase the background to ensure accuracy and safety for the patient. Simultaneously, under the guidance of digital imaging, background erasure allows the doctor to monitor the drug's spread in the joint and the drug outflow.The benefit of digital background erasure imaging guidelines in the treatment of bone lesions is that it allows the physician to monitor the percutaneous needle puncture directly and continuously, ensuring the accuracy and safety of the patient. tips.
3. Steps to treat joint pain under the guidance of digital background removal
Step 1: Prepare the media including: Film printer, image storage system; background eraser digital angiogram; film, lead vest, apron, X-ray shielding; anticoagulants, local anesthetics, water-soluble iodine contrast agents, antiseptic solutions for skin, mucous membranes and common medical supplies and special medical supplies. Step 2: Ask the patient to fast before 6 hours. Can drink no more than 50ml of water. In case the patient is irritated and refuses to lie still, a sedative should be used... Step 3: Local anesthetic Step 4: Disinfect the skin of the joint pain area to be poked, the doctor aseptic according to the procedure , locate the joint slot to poke. After locating the joint space to be punctured to inject joint pain relief, the doctor inserts the needle into the joint socket and injects 1ml of contrast agent to confirm the position of the needle and adjust the needle to the desired position Step 5 : Inject the drug suspension at the ratio of 1.5ml Depo-Medrol 40mg + 1ml Lidocaine 2% + 1ml contrast agent, the volume depends on the joint position to be injected. Step 6: Monitor the spread of the drug under the magnifying screen or digitized angiography screen to erase the background, then withdraw the needle and tape the puncture site.
Đau nhức xương khớp là bệnh lý có thể chuyển thành mãn tính nếu như không có biện pháp điều trị ngay từ ban đầu
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