Nuclear Medicine: Bone, Cardiac and Thyroid Scan
Über den Vortrag
Der Vortrag „Nuclear Medicine: Bone, Cardiac and Thyroid Scan“ von Hetal Verma, MD ist Bestandteil des Kurses „Introduction to Imaging“. Der Vortrag ist dabei in folgende Kapitel unterteilt:
- Bone Scan
- Cardiac Scan
- Thyroid Scan
Quiz zum Vortrag
A bone scan may miss...?
- ...a purely lytic metastasis.
- ...a strictly blastic metastasis.
- ...osteomyelitis.
- ...osteoarthritis.
- ...a fracture.
Which of the following is TRUE about a bone scan?
- Technetium-99m is used as a radioisotope.
- Images are obtained about 2 hours after injection.
- Sensitivity for bone metastases is low.
- It is specific for fractures, degenerative changes, metastases, and osteomyelitis.
- Blastic metastases appear as decreased uptake of the radiotracer.
All the following will be seen in bone metastases in bone scans EXCEPT...?
- ...increased uptake of the radiotracer in the surrounding bone.
- ...multiple asymmetric areas of increased uptake.
- ...the radiotracer is taken up by areas of active bone turnover.
- ...increased uptake in areas of blastic metastases.
- ...no uptake in lytic lesions due to decreased bone turnover.
What is the radiopharmaceutical used in myocardial perfusion imaging?
- Technetium-99 sestamibi
- Technetium-99m tetrabenazine
- Technetium-99r pertechnetate
- Thallium-221
- Radioactive iodine
A defect on the stress portion of the test during a cardiac scan that improves on rest is consistent with…?
- …ischemia.
- …infarction.
- …wall motion abnormality.
- …cardiac tumor.
- …cardiac hypertrophy.
A 22-year-old woman comes to the clinic with a bulge in her neck which has been increasing in size over the past four months. She states that it is painless and does not bother her in any way except for cosmetic reasons. On ultrasound, it is a solitary hypoechoic nodule that measures 2 x 2cm. A thyroid scan shows a decreased uptake of radioactive iodine. What is the next best step in management?
- Fine needle aspiration of the nodule for cytologic analysis
- Repeat the scan in 6 months.
- Surgical resection of the nodule, leaving clean margins
- Iodine-131 administration
- Perform an MRI imaging
Dozent des Vortrages Nuclear Medicine: Bone, Cardiac and Thyroid Scan
Hetal Verma, MD
Dr. Hetal Verma is a Clinical Instructor of Radiology and the Co-Director of the Radiology Cambridge Integrated Clerkship at Harvard Medical School, MA, USA.
She is a graduate of the University of Massachusetts Medical School and completed her Breast Imaging fellowship at the Massachusetts General Hospital. Since 2012, she is the Director of Breast Imaging at Cambridge Health Alliance Radiology, a teaching affiliate of Harvard Medical School.
She is passionate about women's health and has vast experience in teaching medical students and residents at Harvard Medical School.
Within Lecturio, Dr. Verma teaches courses on Radiology.
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She speaks very well and summarises the most important bits of the basics of radiology especially for students who have their exams the next day!
