Dr. Wang Yifen reply Radiology Question - Page 7

Radiation metabolism Dear Chief Physician, I would like to inquire about the cumulative effects on the body from the following imaging procedures: last year, I underwent a mammogram, a unilateral magnification mammogram, and a low-dose chest CT; this year, I had two unilateral m...

Whether the annual examinations and radiation exposure exceed the standard limits? Hello Dr. Wang, I had a sarcoma last year and underwent radiation therapy. For follow-up, I had MRI with contrast; subsequently, I had two PET scans and lung CTs. At the beginning of this year, I h...

What is the maximum annual radiation dose limit? Hello, doctor. I have one more question to ask; I have seen many Q&As in this section, and doctors often mention, "According to the International Commission on Radiological Protection (ICRP) Report 103, a dose below 100 mi...

Magnetic Resonance Imaging (MRI) Contrast Agent Hello, doctor. I have uterine fibroids, and my physician has assessed that I need to undergo an MRI of the pelvis with contrast prior to surgery. Although my attending physician mentioned that it is a very safe procedure and I have ...

I would like to understand whether the radiation exposure from X-ray imaging affects the body? I recently visited several doctors and underwent X-ray examinations due to lower back pain. Later, I discovered through the National Health Insurance app that I had several X-ray exams ...

Mandibular artificial bone + titanium alloy bone screws MRI Dear Doctor, I underwent chin augmentation surgery using artificial bone and titanium alloy screws for fixation. Will this have any impact if I need to undergo a brain MRI? Thank you, Doctor.

MRI of the liver shows nodules? Hello, doctor. My mother is 60 years old. She was diagnosed with stage 1A gastric cancer in August 2018 and underwent surgical treatment. Since then, she has been undergoing annual check-ups. In July 2020, an abdominal CT scan revealed a small nodu...

Abdominal X-ray was performed without providing protective measures? Hello, doctor. Recently, I went to the hospital for treatment due to abdominal pain. During the X-ray procedure, the hospital did not provide any protective equipment (such as lead aprons). Is this a normal situ...

I would like to inquire about the radiation concerns related to computed tomography (CT) scans and positron emission tomography (PET) scans. Thank you? Hello, Director. I would like to ask you about my mother. She underwent a chest CT scan with contrast on April 5th of this year,...

Computed Tomography Radiation Hello, I previously had a fracture in my foot and underwent several X-rays. Recently, I have been experiencing autonomic nervous system dysfunction, which has led me to consider getting a health check-up. Would the combination of this and a CT scan r...

Is this amount of radiation high? I had three chest X-rays between 2020 and 2021, and after an injury, I had a CT scan of my head and one cervical spine X-ray. I would like to know the total radiation exposure from these procedures.

Computed Tomography (CT) Scan Hello doctor, I apologize for bothering you. I am 26 years old and I had a chest X-ray in November of last year, one chest X-ray and one abdominal X-ray. In January, I had an abdominal CT scan, and in February, I had another abdominal X-ray. I would ...

Radiation Issues Hello doctor, I would like to ask if a radiation dose of 320 mGy for a CT scan of the abdomen is considered high. The hospital informed me of this dose, and I am concerned about the risk of developing cancer. If I want to become pregnant, how long should I wait? ...

Radiation-induced leukemia Hello doctor, when I was around 10 years old in elementary school, I had several dental X-rays due to root canal treatments. In high school, around 17 years old, I had a full-body X-ray. At 20, I had several chest X-rays (about 5) due to part-time work....

Upper gastrointestinal series (UGI series) I would like to ask the doctor: My mother had two spinal X-rays and two abdominal X-rays last month. This month, due to the examination, the doctor scheduled an upper gastrointestinal barium study. I would like to know if the radiation d...

Computed Tomography (CT) scan Hello Doctor, I underwent root canal treatment in May of last year, during which I had two full-mouth X-rays and four single X-rays (one of which was taken directly in the treatment area without a lead apron). On November 4th, I had a chest X-ray dur...

Repeated exposure to X-ray radiation in the same area? Hello Dr. Wang, I went to a large hospital to see an orthopedic specialist due to pain in my lower back on the right side. I had X-rays taken of my thoracic spine (front or back?) and lumbar spine on the same day. I also had ...

Is there a risk of excessive exposure to X-rays? In August and September of last year, there were a total of three chest X-rays, and in January of this year, two X-rays of the neck (front and side) were taken. 1. What is the approximate radiation dose from the above X-ray expos...

The impact of cervical X-rays on the thyroid gland? I have heard that the thyroid gland is more sensitive to X-rays. Previously, when I had a neck X-ray, it was directly aimed at my neck, and I am a bit concerned about whether my thyroid might have issues in the future.

Radiation issues Hello Doctor, due to health issues last year, I needed to monitor my brain and undergo pre-admission tests along with various examinations arranged by different physicians, which resulted in frequent exposure to radiation. I have had the following tests: 4 abdomi...