Understanding the Risks of Standing in Restricted Areas Near X-Ray Machines
Could you please provide more details about the topic related to X-rays? Today, when I went to the emergency room, there was a small red circle outside that said "No Standing" (there were also warnings posted on the door). Inside, next to the X-ray machine, there was a ...
Dr. Wu Bin'an reply Radiology
Hello! When you go to the emergency department, there is a small circle of red lines outside that says "No Standing" (with warnings posted on the door). Inside, next to the X-ray machine, there is also a bed-like machine with a surrounding red line that has writing on i...[Read More] Understanding the Risks of Standing in Restricted Areas Near X-Ray Machines
Can You Have an MRI with Metal Implants After Spine Surgery?
excuse me? Can I undergo an MRI scan if I have metal implants in my body? I had spinal stabilization surgery last December, and I'm concerned whether the internal fixation will prevent me from having an MRI. I appreciate your guidance on this matter. Thank you.
Dr. Wu Bin'an reply Radiology
Dear Godzilla, I apologize for the delayed response due to my busy schedule. Regarding your question, "Can I undergo an MRI if I have metal in my body? I had spinal stabilization surgery last December, and I'm unsure if the internal fixation will prevent me from having ...[Read More] Can You Have an MRI with Metal Implants After Spine Surgery?
What Contrast Agents Are Used for Myocardial Infarction Imaging?
The contrast agent used for myocardial infarction injections is typically a type of iodine-based contrast medium? The contrast agent used for MDCT (Multi-Detector Computed Tomography) scans in cases of myocardial infarction is typically iodinated contrast media. For coronary angi...
Dr. Wu Bin'an reply Radiology
Dear Lan, I apologize for the delayed response due to my travels and busy schedule. Here are the answers to your questions: 1. Both MDCT scans and cardiac catheterization primarily use non-ionic contrast media, such as Ultravist, among others. 2. For diagnostic purposes, the a...[Read More] What Contrast Agents Are Used for Myocardial Infarction Imaging?
Radiation Exposure in Upper Gastrointestinal Imaging: What You Need to Know
Regarding the radiation dose in upper gastrointestinal (GI) imaging? Hello Dr. Wu, My wife and I underwent a health checkup at the health examination center on April 11. The day before, we checked for pregnancy using a home pregnancy test, which came back negative. However, we ...
Dr. Wu Bin'an reply Radiology
Hello MIRO users, according to literature reports, when pregnant women are exposed to radiation with a cumulative dose of less than 50 millisieverts (for example, a chest X-ray typically has a dose of about 0.2 millisieverts), the risks of congenital anomalies, growth retardation...[Read More] Radiation Exposure in Upper Gastrointestinal Imaging: What You Need to Know
Impact of a 5-Cent Coin on MRI Results: What You Need to Know
Having a 5-dollar coin in your pocket during an MRI scan can potentially affect the results. The presence of metal objects can create artifacts in the images, which may obscure or distort the area being examined. It is generally advised to remove all metallic items before undergo...
Dr. Wu Bin'an reply Radiology
Dear Cindy: Your question is answered as follows: MRI (Magnetic Resonance Imaging) utilizes a powerful magnet, which is housed in a tunnel approximately 50 to 60 centimeters wide and over 1 meter long. In simple terms, it is a large and heavy magnet that emits a magnetic field te...[Read More] Impact of a 5-Cent Coin on MRI Results: What You Need to Know
Comprehensive Health Checkups: Early Cancer Detection and Costs Explained
Comprehensive health check-up? Hello Doctor: I would like to ask about a type of health checkup, similar to a cave, that can detect cancer and systemic diseases early. What is the name of this ultra-precise examination? What are the costs for men and women respectively? How far i...
Dr. Wu Bin'an reply Radiology
Hello, the type of ultra-precise examination you are referring to, which can detect cancer and systemic diseases early, is likely Magnetic Resonance Imaging (MRI) for self-paid examinations. Some hospitals charge according to the National Health Insurance standards, while others ...[Read More] Comprehensive Health Checkups: Early Cancer Detection and Costs Explained
Understanding Radiation Exposure from CT Scans and PET Imaging: Risks and Safety
The radiation dose from a computed tomography (CT) scan? Hello, I saw a message the other day stating that 1. One PET scan is equivalent to 100 mammograms. 2. The cancer risk from one full-body CT scan is 1 in 1,000. Since I underwent the following procedures last month within a ...
Dr. Wu Bin'an reply Radiology
Dear cf user: Hello, regarding your question, here is a comprehensive response: 1. Will undergoing multiple tests in a short period increase cancer risk? The answer is no; the likelihood of increased cancer risk is almost negligible. The effects of radiation on the human body a...[Read More] Understanding Radiation Exposure from CT Scans and PET Imaging: Risks and Safety
Understanding Bone Scans: Assessing Pain and Cancer Metastasis Risks
BONE SCAN Hello Director Wu, I would like to ask about my mother's sudden shoulder pain. After X-ray and MRI examinations, the doctor found abnormalities and inquired about the possibility of a biopsy. Since my mother is due for a routine follow-up for her breast cancer and ...
Dr. Wu Bin'an reply Radiology
Dear Xiaohui, First, I would like to clarify that I am a radiologist, not a nuclear medicine physician. I will answer your questions based on my knowledge: Generally speaking, various malignant tumors can spread to the bones through the bloodstream, with lung cancer, breast ca...[Read More] Understanding Bone Scans: Assessing Pain and Cancer Metastasis Risks
Understanding Ga-67 Tumor Scans: Risks, Radiation Exposure, and Safety Concerns
Ga-67 tumor scan Is there any potential side effect from undergoing a Ga-67 tumor scan, such as infertility? Additionally, how significant is the radiation dose during a Ga-67 tumor scan, and will it have any impact on those nearby?
Dr. Wu Bin'an reply Radiology
Dear Yu, I apologize for the delayed response due to my busy schedule. First, I would like to clarify that I am a radiologist, not a nuclear medicine physician. Based on my knowledge, I would like to answer your question regarding the Ga-67 tumor scan, which is one of the widel...[Read More] Understanding Ga-67 Tumor Scans: Risks, Radiation Exposure, and Safety Concerns
Understanding MRI Contrast Coverage and Costs in Taiwan
MRI contrast agent Hello Dr. Wu, is MRI with contrast covered by health insurance? If not, what would the out-of-pocket cost be? I often experience pain in my upper right abdomen and have been to a teaching hospital for examination. I have undergone X-rays, ultrasounds, endoscopy...
Dr. Wu Bin'an reply Radiology
Dear user, Here are the responses to your questions: 1. MRI imaging examinations are covered by health insurance, but they must be deemed necessary by a physician. If you require a self-paid examination, some hospitals charge according to the health insurance rates, while othe...[Read More] Understanding MRI Contrast Coverage and Costs in Taiwan
Understanding Radiation Exposure: Is Too Much X-Ray Harmful?
Radiation dose Hello Dr. Wu, I would like to ask about my health condition. I've been feeling unwell for the past six months. I have undergone three chest X-rays, three lumbar spine X-rays, and one lumbar spine CT scan at different hospitals. I am concerned about whether my ...
Dr. Wu Bin'an reply Radiology
Dear Baiye forum user: You mentioned that "my health has been poor for the past six months, and I have undergone three chest X-rays, three lumbar spine X-rays, and one lumbar spine CT scan at different hospitals." The radiation dose from these diagnostic imaging procedu...[Read More] Understanding Radiation Exposure: Is Too Much X-Ray Harmful?
Impact of Dental X-rays on Radiology Staff: Safety Concerns for Pregnant Nurses
Will dental X-rays affect AP personnel? Hello Dr. Wu, I have a few questions I would like to ask you. I am a nurse working in the dental department of a regional teaching hospital, and there is a possibility that I may become pregnant soon. However, I have not received clear answ...
Dr. Wu Bin'an reply Radiology
Dear user, due to various factors, I apologize for the delayed response. Here are the answers to your questions: 1. Based on your current work situation at a regional teaching hospital, radiation protection personnel conduct strict radiation monitoring annually, so radiation saf...[Read More] Impact of Dental X-rays on Radiology Staff: Safety Concerns for Pregnant Nurses
Is Frequent X-Ray Exposure Harmful After Multiple Surgeries?
Issues with X-rays? Hello, Dr. Wu! I have a question to ask you. I had an open comminuted fracture of my right thigh from a car accident and underwent eight or nine surgeries within six months. Each surgery required 2 to 3 X-rays, and during follow-up visits after discharge, I al...
Dr. Wu Bin'an reply Radiology
Hello, due to traveling abroad and being busy, I apologize for the delayed response. Here are the answers to your questions: (1) The Atomic Energy Commission regulations state that the annual effective dose limit for the general public is 5 mSv, while the annual effective dose ...[Read More] Is Frequent X-Ray Exposure Harmful After Multiple Surgeries?
Does Using Call Transfer Systems Increase Mobile Radiation Exposure?
Does the electromagnetic wave strengthen when a mobile phone is connected through an adapter? Dear Dr. Wu, Thank you for your reply. I noticed in your response on the Taiwan e-Hospital platform that you mentioned using a hands-free headset or earphones when operating mobile phon...
Dr. Wu Bin'an reply Radiology
Yilin netizen: I apologize for the delayed response to your question. Your inquiry involves several aspects beyond my expertise, but I will attempt to answer as follows: (1) Essentially, "if you cannot use a hands-free headset or earphones, it is crucial to fully extend the ...[Read More] Does Using Call Transfer Systems Increase Mobile Radiation Exposure?
Impact of Non-Ionic Contrast Agents on Diabetic Patients During Small Bowel CT
CT ( Director Wu: May I ask about the impact of administering a non-ionic contrast agent for a small bowel CT scan in a patient with a nearly 10-year history of diabetes? Thank you.
Dr. Wu Bin'an reply Radiology
Dear Xiaoling, 1. Generally, for abdominal CT scans, most examinations require the ingestion of water-soluble contrast agents and intravenous injection of contrast agents, and your question regarding "the need for non-ionic contrast agents for small bowel CT" is the s...[Read More] Impact of Non-Ionic Contrast Agents on Diabetic Patients During Small Bowel CT
Understanding Radiation Exposure from Dental and Skull X-rays
What is the radiation dose of a skull X-ray? Dear Dr. Wu, I have recently undergone root canal treatment and have had several dental X-rays taken (due to changing dentists multiple times, I ended up with quite a few X-rays, and some dentists did not provide lead aprons). Additio...
Dr. Wu Bin'an reply Radiology
Dear Naoko, Here are the comprehensive answers to your questions: 1. First, let me correct your terminology: the protective garment used for radiation shielding is called a "lead apron," not an "iron apron." Generally, patients are not required to wear lead...[Read More] Understanding Radiation Exposure from Dental and Skull X-rays
Understanding Calcified Shadows in Lung X-rays: What You Need to Know
X-ray examination I had a health check-up at the beginning of August this year, and after an X-ray, the results showed a calcified shadow in the left upper lobe of my lung. I would like to know what this means. Does it indicate any disease? I don't feel any discomfort or hav...
Dr. Wu Bin'an reply Radiology
Dear Sandy, Your chest X-ray from the health examination shows a calcified shadow in the left upper lobe of the lung, which may indicate: (1) that you may have had a past infection of tuberculosis that has completely healed, resulting in a calcified lesion; (2) that there may ha...[Read More] Understanding Calcified Shadows in Lung X-rays: What You Need to Know
Do Cell Phone Radiation Waves Really Harm Your Health?
Mobile phone electromagnetic waves Hello Dr. Wu, I would like to ask you about the effects of mobile phone electromagnetic waves on the human body. I am unsure, but there are always some media or online reports suggesting that they can cause harm to the brain or body. Is this tru...
Dr. Wu Bin'an reply Radiology
Dear Yilin netizen: I apologize for the delayed response due to my busy work schedule. Regarding your question, I have gathered relevant information and provide the following answers: 1. Electromagnetic waves can be classified into two types based on energy levels: ionizing radi...[Read More] Do Cell Phone Radiation Waves Really Harm Your Health?
CT Scans for Tumor Detection: Accuracy, Safety, and Timing Explained
Computed Tomography (CT) Scan Can a CT scan be performed for the following tumor evaluations: 1. liver, spleen, kidneys, gallbladder, colon, small intestine, retroperitoneum, lymph nodes, prostate? 2. It is said that there are generally 0.5 cm or 1 cm distinctions; how much time ...
Dr. Wu Bin'an reply Radiology
1. Computed tomography (CT) scans utilize an X-ray tube that rotates around the body, capturing data as the X-rays penetrate the body. This data is then reconstructed into images by a computer. CT scans can provide precise structural images of various body parts, which can be dis...[Read More] CT Scans for Tumor Detection: Accuracy, Safety, and Timing Explained
Are Long-Wave Therapy Devices Really as Effective as Claimed?
Is the efficacy of ultra-long wave therapy devices really that remarkable? At the end of April, I was introduced to the theory and experiments of so-called third medicine magnetic wave therapy (authored by Dr. Lai Feng-Jia, a Doctor of Traditional Chinese Medicine, with this pape...
Dr. Wu Bin'an reply Radiology
Dear netizens: Due to various factors, I apologize for the delayed response. Regarding third medicine, it is not my area of expertise. Below is the information I have researched; please refer to: www.tcha.org.tw/PRODUCT.htm. The basic principle of third medicine is to utilize mag...[Read More] Are Long-Wave Therapy Devices Really as Effective as Claimed?