Radiology Q&A - Page 10

Waiting time for a bone scan? 1. After the injection of Tc-99m MDP, the optimal waiting time for imaging is typically around 3-5 hours to ensure the best quality of the scan. However, some facilities may suggest waiting for at least 2-3 hours for adequate imaging quality. 2. If ...

Questions regarding radiation dosage? Hello Dr. Chang, I recently underwent a pelvic CT scan at a certain hospital and called the staff there to inquire about the radiation dose. However, the staff member mentioned that he couldn't determine the radiation dose from the data...

Dental X-ray radiation does not remain in the body or in metal objects? Hello, doctor! I would like to inquire about the radiation issue related to dental X-rays. If I have had X-rays taken two to four times in one week, will there be any residual radiation in my body? (I'm ...

Radiation issues Hello, doctor. I would like to ask: my total radiation exposure is 36.2 millisieverts, and the additional cancer risk is approximately 0.5%. Does this mean that my likelihood of developing cancer is significantly increased? I have been constantly thinking about t...

Radiation from CT Scans and Cardiac Catheterization in Infants with Congenital Heart Disease Hello Dr. Yeh, My daughter was diagnosed with congenital heart disease (absence of the right pulmonary artery) right after birth. At just 5 days old, she underwent a cardiac CT angiogra...

X-ray Radiation Issues in Infants and Young Children Hello, Doctor. My daughter is currently 1 year and 3 months old. On April 26, she had a fever for no apparent reason, which fluctuated over the holiday. We went to the emergency room, where the doctor performed a chest X-ray, a...

Computed Tomography and Ultrasound Hello Dr. Wang: Previously, I visited the otolaryngology department at a medical center due to a lump under my right ear. The physician performed an ultrasound examination and diagnosed it as a 0.9 x 0.6 cm salivary gland tumor, recommending fol...

Hello, I would like to inquire about the effects of multiple computed tomography (CT) scans in a short period of time on the body? Hello Dr. Wang, I have a few questions to ask you. I had a chest X-ray at the beginning of January, a CT scan of the abdomen (with contrast) in mid-F...

Radiation issues Thank you, doctor, for your prompt response and well wishes. I have another question: Recently, I have been experiencing a tingling sensation in my face, and I am wondering if it could be caused by radiation exposure. Which specialty should I consult for this iss...

Radiation issues Thank you for your response, Doctor. I apologize for my health anxiety and overthinking. I don't quite understand what you mean, so should I be concerned about my current radiation exposure of 36.2 millisieverts? What should I be paying attention to? Should ...

Radiation issues Hello doctor, I am a health anxiety patient. Due to autonomic nervous system dysregulation, I have undergone the following examinations in 2018, 2019, and this year: one head computed tomography (CT), one head magnetic resonance imaging (MRI), approximately 18 ch...

Issues Related to Radiation from Catheter Ablation for Arrhythmias 1. Hello Doctor, when I was 19 years old, I underwent catheter ablation for arrhythmia (not 3D mapping). The ablation procedure lasted about two and a half hours. I'm concerned about the radiation exposure an...

Radiation Issues Thank you for your response, Doctor. I have been experiencing health anxiety along with autonomic nervous system dysregulation, and I have visited outpatient clinics multiple times over the past three years. In 2018 and 2019, I underwent the following examination...

Spinal MRI (Magnetic Resonance Imaging) Hello, doctor. I would like to ask about undergoing an MRI of the entire spine. Besides identifying issues such as herniated discs, can it also detect problems with bones or soft tissues (like muscles or ligaments)? What information can the...

Ingestion of plastic foreign bodies? Hello Dr. Wang, if a plastic foreign object is accidentally ingested and enters the respiratory tract, what should be done? Multiple chest X-rays have shown normal lung findings.

X-ray dosage Hello Doctor, I am concerned about the radiation exposure from X-rays. Since the car accident on November 22, 2019, I have undergone a CT scan of my head once (on November 22) and five X-rays of my clavicle (approximately every 3-4 weeks). I had an X-ray of my clavi...

Entering the X-ray room with animals? Hello, Doctor. Due to my work, I often accompany animals into the X-ray room for imaging, and sometimes I take up to 8 images in a day. How many images can I safely take in one day? The X-ray settings include kV (commonly set between 50-150),...

Radiation Issues Hello Doctor, due to autonomic nervous system dysfunction, I underwent the following examinations in 2018 and 2019: head CT scan, head MRI, chest X-rays (about 10 times), abdominal CT scan, neck ultrasound, echocardiogram, breast ultrasound, gastroscopy, abdomina...

Radiation Issues I visited the orthopedic department due to groin pain and a suspected mass. I had four X-ray images of the hip and pelvis taken, and after the physician reviewed them, he determined that it was not a bone issue and referred me to the surgical department. The surg...

Radiation dose from a full spine X-ray examination? Hello! My daughter is 15 years old and has undergone two full-body spinal X-ray examinations in the past year and a half (from the neck to the pelvis). The first examination included one frontal and one lateral view of the entir...