What is the primary purpose of a PET scan in nuclear medicine? A) Assessing bone density B) Evaluating metabolic activity C) Imaging soft tissues D) Detecting fractures Which radioactive isotope is commonly used in thyroid scans? A) Technetium-99m B) Iodine-123 C) Gallium-67 D) Fluorine-18 What is the main advantage of using technetium-99m in imaging? A) … Read more
What is the primary imaging modality used to evaluate brain tumors? A) X-ray B) MRI C) CT scan D) Ultrasound Which imaging technique is most effective for detecting acute ischemic stroke? A) MRI B) CT scan C) X-ray D) PET scan What does a “hyperintense” signal on T2-weighted MRI typically indicate? A) Fat B) Fluid … Read more
What is the most common imaging modality used for evaluating neonatal brain conditions? A) CT scan B) Ultrasound C) MRI D) X-ray Which imaging technique is preferred for assessing congenital heart defects in neonates? A) Echocardiography B) X-ray C) MRI D) CT scan What is a primary indication for performing a cranial ultrasound in newborns? … Read more
What is the primary imaging modality used to evaluate bone fractures? A) MRI B) X-ray C) Ultrasound D) CT scan Which of the following conditions is best diagnosed with MRI? A) Osteoporosis B) Soft tissue injuries C) Osteoarthritis D) Bone density loss What is the significance of a “sunburst” appearance on X-ray? A) Osteomyelitis B) … Read more
What is the primary principle behind MRI? A) Magnetic fields and radio waves B) X-rays C) Ultrasound waves D) Nuclear radiation Which of the following is a common contraindication for MRI? A) Diabetes B) Pacemaker C) Asthma D) Hypertension What type of contrast agent is typically used in MRI? A) Iodine-based B) Gadolinium-based C) Barium-based … Read more
What is the primary purpose of interventional radiology? A) Diagnosis B) Treatment of diseases C) Patient monitoring D) Surgical intervention Which imaging modality is commonly used to guide interventional procedures? A) X-ray B) Fluoroscopy C) MRI D) Ultrasound What is the most common indication for percutaneous biopsy? A) Suspicious mass B) Routine screening C) Post-operative … Read more
What is the most common imaging modality used for initial evaluation of tumors? A) MRI B) CT scan C) Ultrasound D) X-ray Which imaging characteristic is most suggestive of a malignant tumor? A) Well-defined margins B) Irregular borders C) Homogeneous density D) Central calcifications In breast imaging, what finding is highly suspicious for malignancy? A) … Read more
Which imaging modality is most commonly used to assess pneumonia? A) CT scan B) Chest X-ray C) MRI D) Ultrasound What is the typical imaging finding in a patient with tuberculosis (TB) pneumonia? A) Cavitary lesions B) Consolidation C) Pleural effusion D) Ground-glass opacities What is the primary imaging technique used to evaluate abscess formation? … Read more
What is the first imaging modality commonly used in trauma cases? A) MRI B) CT scan C) Ultrasound D) X-ray Which imaging technique is preferred for assessing abdominal trauma? A) CT scan with contrast B) Plain X-ray C) MRI D) PET scan What is the primary benefit of using ultrasound in trauma cases? A) Real-time … Read more
What is the primary purpose of gadolinium-based contrast agents in MRI? A) Pain relief B) Enhancing the visibility of structures C) Reducing scan time D) Minimizing patient anxiety Which of the following is a common side effect of gadolinium-based contrast agents? A) Allergic reaction B) Nausea C) Vomiting D) Hypertension In which of the following … Read more