Understanding Multicentric Tumors in Breast Cancer: A Radiology Perspective
Computed Tomography (CT) Scan Could you please clarify with Dr. Wang? You mentioned that multicentric tumors refer to multicentric tumors. Is this related to breast cancer?
Dr. Wang Yifen Reply:
Hello, tumors include both benign and malignant types, and the term "multicentric tumor" does not necessarily indicate breast cancer (malignant). Please take this into consideration, and I wish you peace and health.[Read More] Understanding Multicentric Tumors in Breast Cancer: A Radiology Perspective
Understanding CT Imaging of Enhancing Nodules in Breast Radiology
Computed Tomography Interpretation Thank you, Dr. Wang, for your previous explanation regarding enhancing nodules in the breast! 1. As you mentioned, enhancing nodules on CT can represent both benign and malignant tumors, so further evaluation is necessary. In your experience, ...
Dr. Wang Yifen Reply:
Hello, 1. Most enhancing nodules are benign. However, imaging studies cannot replace microscopic examination of pathological tissue. If clinically deemed necessary, a biopsy should be performed to obtain specimens to determine whether the nodules are benign or malignant. The tiss...[Read More] Understanding CT Imaging of Enhancing Nodules in Breast Radiology
Understanding CT Scan Results: Esophagus, Heart, and Breast Nodules Explained
Computed Tomography (CT) Scan 1. In the previous computed tomography (CT) scan report, there is a statement that "The esophagus and heart are grossly unremarkable." This means that there are no significant abnormalities detected in the esophagus and heart on the scan. I...
Dr. Wang Yifen Reply:
Hello, 1. The esophagus and heart are grossly unremarkable, meaning that there are no significant imaging findings worth describing for these structures. 2. Enhancing nodules refer to nodules that show contrast enhancement after the administration of a contrast agent. Breast ...[Read More] Understanding CT Scan Results: Esophagus, Heart, and Breast Nodules Explained
Understanding X-Ray Radiation Exposure: What You Need to Know
X-ray radiation issues? The radiation dose for a single cervical X-ray is approximately 0.2 millisieverts (mSv). However, the total radiation exposure can vary based on the specific type of imaging performed and the number of views taken. In your case, if you have undergone cer...
Dr. Wang Yifen Reply:
Hello, there are many factors that can affect the dose of radiation exposure, including the area of exposure, the range of exposure, the distance from the source, and the duration of exposure. The body size of the individual being examined can also influence the radiation dose. A...[Read More] Understanding X-Ray Radiation Exposure: What You Need to Know
Understanding CT Scans: Radiation Exposure and Image Quality Concerns
Computed Tomography (CT) scan Hello Doctor, last November I underwent an abdominal CT scan at a small hospital in Yilan due to diarrhea and abdominal pain. Since my condition did not improve, I found out that the CT scan was performed with 4 slices. I would like to ask the doctor...
Dr. Ye Weicheng Reply:
Dear Mr. A-Zhen, Regarding your questions about computed tomography (CT) scans, let me explain: 1. Is a 4-slice CT scan performed in multiple passes for the abdomen, and does the radiation dose increase? Answer: Generally, the range of a CT scan is determined by the radiologic...[Read More] Understanding CT Scans: Radiation Exposure and Image Quality Concerns
Radiation Risks of Multiple X-Rays in Newborns with Abnormal Ultrasound Findings
Due to the abnormal positioning of the intestinal veins and arteries observed in the ultrasound examination of a newborn, a barium contrast X-ray imaging of the intestines was performed, raising concerns about radiation exposure? A 4-day-old newborn underwent an ultrasound examin...
Dr. Wang Yifen Reply:
Hello, a barium swallow X-ray examination of the gastrointestinal tract will assess the distribution of barium in the abdominal intestines at different time intervals to identify any related gastrointestinal diseases. The number of images taken is correlated with intestinal motil...[Read More] Radiation Risks of Multiple X-Rays in Newborns with Abnormal Ultrasound Findings
Is Three X-Rays in One Week Too Much for Your Health?
Is having three X-rays in one week too much? Due to mistakenly believing that a fishbone was stuck in the throat, an X-ray of the neck was taken last Thursday, divided into front, left, and right views. Then, this Monday, another X-ray of the left side of the neck was performed. ...
Dr. Wang Yifen Reply:
Hello, when considering an X-ray examination, it is important to assess the necessity of the procedure rather than limiting the radiation dose or the number of examinations. It is advisable to communicate with your physician and follow their recommendations. Do not avoid examinat...[Read More] Is Three X-Rays in One Week Too Much for Your Health?
Concerns About Abdominal CT Scan: Breathing Techniques and Metal Implants
Abdominal Computed Tomography (CT) Scan During my abdominal CT scan, the machine instructed me to take a deep breath and hold it. After the scan, I was told I could breathe again, but I was so nervous that I realized later at home that I hadn't fully inhaled each time I held...
Dr. Wang Yifen Reply:
Hello, holding your breath during the examination can reduce the interference caused by respiratory motion artifacts, and it has minimal impact on abdominal organs, as peristalsis in the gastrointestinal tract does not stop due to breath-holding. The oral cavity and abdomen are c...[Read More] Concerns About Abdominal CT Scan: Breathing Techniques and Metal Implants
CT 640 vs DSCT: Which Offers Better Accuracy and Lower Radiation?
Which is more accurate, CT 640 or DSCT? I would like to arrange a detailed health check for my father. Which is more accurate, the CT 640 ultra-fast computed tomography scan or the dual-source computed tomography (DSCT)? Additionally, which one has a lower radiation dose? If ther...
Dr. Wang Yifen Reply:
Hello, 1. To enhance the quality of radiation medicine and ensure public health and safety, the Atomic Energy Council of the Executive Yuan has actively promoted quality assurance operations for medical exposure since 2004. For 11 types of radiological diagnostic equipment freq...[Read More] CT 640 vs DSCT: Which Offers Better Accuracy and Lower Radiation?
Understanding X-Ray Safety: Why Some Areas Are Shielded and Others Aren't
Questions to Consider When Taking X-rays Hello, doctor. The day before yesterday, I had an X-ray of my shoulder and upper arm joint. The radiologic technologist used a lead apron to shield my lower body. This made me recall my previous experiences, where often there was no specif...
Dr. Wang Yifen Reply:
Hello, the area you photographed is on the shoulder and upper arm. There is no significant difference between using lead shielding to cover the lower body and not using it. Literature suggests that lead shielding can reduce the dose of scattered radiation, but the radiation dose ...[Read More] Understanding X-Ray Safety: Why Some Areas Are Shielded and Others Aren't
Understanding MRI Reports: Addressing Concerns About Abdominal Symptoms
MRI report issues Hello, doctor. I started experiencing abdominal discomfort in April of last year and visited various gastroenterology clinics due to persistent symptoms. Eventually, I sought treatment at a large hospital because I was concerned about potential issues with my in...
Dr. Wang Yifen Reply:
Hello, the diagnosis of diseases does not rely solely on imaging examinations; it also requires consideration of clinical symptoms, laboratory tests, family history, personal lifestyle habits, and other relevant information. Even though various imaging studies are non-invasive, t...[Read More] Understanding MRI Reports: Addressing Concerns About Abdominal Symptoms
Understanding Your Heart MRI Results: Key Insights for Patients
Issues with cardiac MRI examination results? Hello, Director: I have been experiencing arrhythmia issues and recently underwent a cardiac MRI (with contrast) examination. I had a similar examination two years ago, which revealed late gadolinium enhancement (LGE) in a certain area...
Dr. Wang Yifen Reply:
Hello, interpreting cardiac MRI images requires reviewing various imaging sequences, dynamic scans, and even comparing them with previous images. I apologize, but based solely on the images you uploaded, it is not appropriate to hastily respond to your inquiries. I have contacted...[Read More] Understanding Your Heart MRI Results: Key Insights for Patients
Understanding Radiation Exposure: Safety Concerns and Dental X-rays
Radiation issues Hello, doctor. I have undergone one abdominal CT scan without contrast, approximately five abdominal X-rays, four chest X-rays, ten single panoramic X-rays, and three full-mouth X-rays. However, my teeth still feel a bit uncomfortable, and I'm unsure if I ca...
Dr. Wang Yifen Reply:
Hello, the decision to perform a radiological examination is based on the physician's professional judgment regarding the necessity of the examination, adhering to the principles of medical justification and optimization of exposure. There are no restrictions on the number o...[Read More] Understanding Radiation Exposure: Safety Concerns and Dental X-rays
Concerns About Radiation from Mobile X-Ray Machines in Nursing Homes
Mobile X-ray radiation issues I have a question regarding a portable X-ray machine. I work in a nursing home, and during a health check, a radiologic technologist used a portable X-ray machine to perform chest X-rays on us. The machine was set up so that we sat in chairs with a l...
Dr. Wang Yifen Reply:
Hello, an X-ray machine emits radiation only when it is powered on and produces X-ray energy. The radiation dose from a chest X-ray is approximately 0.02 millisieverts, while a round trip flight from Taipei to the West Coast of the United States results in a dose of about 0.09 mi...[Read More] Concerns About Radiation from Mobile X-Ray Machines in Nursing Homes
Understanding CT Scan Quality: Is 4-Slice Technology Adequate?
CT scan interpretation Hello doctor, last November I went to a small hospital in Yilan for an abdominal CT scan due to abdominal discomfort. The results were normal, but my symptoms have not improved. I later found out that the CT scan from that hospital was a 4-slice scan. I wou...
Dr. Wang Yifen Reply:
To enhance the quality of radiation medicine and ensure public health and safety, the Atomic Energy Council of the Executive Yuan has actively promoted quality assurance for medical exposure since 2004. For 11 commonly used radiological diagnostic devices, such as computed tomogr...[Read More] Understanding CT Scan Quality: Is 4-Slice Technology Adequate?
Understanding Spinal Fractures and the Impact of Frequent X-rays
Vertebral fracture and mild spondylolisthesis? Hello! I was diagnosed with a vertebral arch fracture and mild spondylolisthesis in early January. Since then, I have visited several clinics and have had multiple X-rays of my spine and vertebral arch. In early March, I started shoc...
Dr. Wang Yifen Reply:
Hello, the application of radiation in medicine is very extensive. It is utilized in radiological diagnostics, radiation therapy, nuclear medicine, surgical localization in operating rooms, dental procedures, and lithotripsy in urology, among others. When performed by qualified p...[Read More] Understanding Spinal Fractures and the Impact of Frequent X-rays
Understanding Radiation Risks of Full-Body CT Scans: What You Need to Know
Computed Tomography Radiation Hello, doctor. Thank you for your previous response, but I still have some concerns that I would like to further inquire about: 1. Is a whole-body CT scan considered a high or excessive radiation dose examination? Is it not suitable for generally hea...
Dr. Wang Yifen Reply:
Hello, diagnostic computed tomography (CT) scans are considered low-dose radiation examinations. Whether this method is suitable for an individual should be assessed by a clinical physician. A single whole-body CT scan does not cause functional damage to the body. If you experien...[Read More] Understanding Radiation Risks of Full-Body CT Scans: What You Need to Know
Understanding CT Scan Radiation Exposure and Cancer Risk Concerns
Computed Tomography Radiation Hello, I would like to consult with a physician: I underwent a non-contrast abdominal and pelvic CT scan in the emergency room on October 24 last year, and on March 8 this year, I had a full-body CT scan (from the neck to the pelvis, with contrast). ...
Dr. Wang Yifen Reply:
According to the American Society of Radiologic Technologists, the radiation dose from a single abdominal and pelvic CT scan is approximately 14 millisieverts, while a full-body CT scan has a radiation dose of about 21 millisieverts. The total radiation dose amounts to approximat...[Read More] Understanding CT Scan Radiation Exposure and Cancer Risk Concerns
Will Doctors Inform You Immediately About X-Ray Abnormalities?
If there are any abnormalities found in the X-ray, will they be communicated immediately? Hello, I recently had a chest X-ray as part of my health check-up for tuberculosis. After the X-ray, the doctor said that there were no signs of tuberculosis and marked me as qualified. Howe...
Dr. Wang Yifen Reply:
Hello, whether or not abnormalities found in an X-ray are communicated on the spot depends on the patient's condition, the physician's examination, or the hospital's operational procedures, and there is no standard answer. Imaging studies are intended to provide di...[Read More] Will Doctors Inform You Immediately About X-Ray Abnormalities?
Are 8 X-Rays Safe? Understanding Radiation Risks and Safety
Radiation Issues from Eight X-rays Recently, I had an ankle sprain and underwent two X-rays in the emergency department. Two days later, I had two more X-rays in the morning at the outpatient clinic, and in the afternoon, I took my child, who was injured, for about four X-rays of...
Dr. Wang Yifen Reply:
Hello, general diagnostic X-ray examinations involve low-dose radiation exposure. The radiation dose from a single X-ray of the limbs is approximately 0.001 millisieverts, and the radiation from eight limb X-rays is lower than the dose of 0.09 millisieverts received from a round ...[Read More] Are 8 X-Rays Safe? Understanding Radiation Risks and Safety
Radiology FAQ
| Contrast Agent | Ct Scan |
| Ct Scan Radiation | Magnetic Resonance Imaging |
| Mri | Mri Report |
| Radiation | Radiological Examination |
| X-Ray | X-Ray Examination |
| X-Ray Radiation |