Podcast
Questions and Answers
What is the inorganic mineral phase of bone composed of?
What is the inorganic mineral phase of bone composed of?
- Calcium, phosphate, and hydroxyl ions (correct)
- Calcium and phosphate
- Phosphorus and hydroxyl ions
- Calcium and collagen
What cells are responsible for resorbing old bone in the process of bone remodeling?
What cells are responsible for resorbing old bone in the process of bone remodeling?
- Osteocytes
- Osteoblasts
- Osteoclasts (correct)
- Chondrocytes
What is the purpose of bone-seeking radiopharmaceuticals like technetium-labeled diphosphonates?
What is the purpose of bone-seeking radiopharmaceuticals like technetium-labeled diphosphonates?
- To image the skeleton (correct)
- To treat bone fractures
- To promote bone turnover
- To stimulate osteoblast activity
Which part of the skeleton is composed of the skull, spine, and shoulder girdle?
Which part of the skeleton is composed of the skull, spine, and shoulder girdle?
What factor can lead to decreased skeletal activity in bone scans?
What factor can lead to decreased skeletal activity in bone scans?
Which imaging technique is used to improve lesion detection in large joints and the spine?
Which imaging technique is used to improve lesion detection in large joints and the spine?
How do bone-seeking radiopharmaceuticals primarily accumulate in bone?
How do bone-seeking radiopharmaceuticals primarily accumulate in bone?
What is the main advantage of Fluorine-18 sodium fluoride over technetium-99m diphosphonate for bone scanning?
What is the main advantage of Fluorine-18 sodium fluoride over technetium-99m diphosphonate for bone scanning?
What can cause increased soft-tissue activity in planar bone scans?
What can cause increased soft-tissue activity in planar bone scans?
Where is increased activity commonly observed in older patients with arthritis during bone scans?
Where is increased activity commonly observed in older patients with arthritis during bone scans?
What is a common clinical application for bone scanning according to the text?
What is a common clinical application for bone scanning according to the text?
Which imaging technique has shown higher sensitivity and specificity compared to conventional bone imaging with 99mTc-diphosphonate?
Which imaging technique has shown higher sensitivity and specificity compared to conventional bone imaging with 99mTc-diphosphonate?
What is the appearance of osteoid osteoma on bone scans according to the text?
What is the appearance of osteoid osteoma on bone scans according to the text?
Which type of tumor can result in soft-tissue activity on bone scans?
Which type of tumor can result in soft-tissue activity on bone scans?
What is the role of bone scans in detecting fibrous cortical defects according to the text?
What is the role of bone scans in detecting fibrous cortical defects according to the text?
What imaging technique is particularly useful for identifying hidden hip and knee fractures or when the site of pain is localized?
What imaging technique is particularly useful for identifying hidden hip and knee fractures or when the site of pain is localized?
Which phase of a bone scan follows the acute phase and shows more localized and intense activity lasting 2 to 3 months?
Which phase of a bone scan follows the acute phase and shows more localized and intense activity lasting 2 to 3 months?
What is typically seen on bone scans in cases of shin splints?
What is typically seen on bone scans in cases of shin splints?
What radiographic signs initially indicate osteomyelitis?
What radiographic signs initially indicate osteomyelitis?
Which imaging technique offers high effectiveness and spatial resolution for detecting early bone involvement in inflammatory diseases, but may not be suitable for patients with infected metallic prostheses?
Which imaging technique offers high effectiveness and spatial resolution for detecting early bone involvement in inflammatory diseases, but may not be suitable for patients with infected metallic prostheses?
What can cause a false-negative bone scan in the early stages of osteomyelitis?
What can cause a false-negative bone scan in the early stages of osteomyelitis?
Which condition is characterized by increased activity in all phases on a bone scan?
Which condition is characterized by increased activity in all phases on a bone scan?
What is a distinct appearance on bone scans for hypertrophic pulmonary osteoarthropathy?
What is a distinct appearance on bone scans for hypertrophic pulmonary osteoarthropathy?
What is a common characteristic of avascular necrosis on bone scans?
What is a common characteristic of avascular necrosis on bone scans?
What type of activity may indicate complex regional pain syndrome (CRPS) on a bone scan?
What type of activity may indicate complex regional pain syndrome (CRPS) on a bone scan?
Which imaging technique is commonly used alongside 111In-WBC imaging to differentiate normal marrow from leukocyte accumulation in cases of suspected infected joint replacements?
Which imaging technique is commonly used alongside 111In-WBC imaging to differentiate normal marrow from leukocyte accumulation in cases of suspected infected joint replacements?
At what age should screening for osteoporosis begin for women?
At what age should screening for osteoporosis begin for women?
What is the most widely used method for accurately determining Bone Mineral Density (BMD)?
What is the most widely used method for accurately determining Bone Mineral Density (BMD)?
Which tool provides a 10-year risk of hip and global fractures and is commonly used to assess fracture risk?
Which tool provides a 10-year risk of hip and global fractures and is commonly used to assess fracture risk?
What do T-scores compare a patient's Bone Mineral Density (BMD) to?
What do T-scores compare a patient's Bone Mineral Density (BMD) to?
What is the half-life of Strontium-89 (89Sr) chloride?
What is the half-life of Strontium-89 (89Sr) chloride?
How is Strontium-89 (89Sr) primarily excreted from the body?
How is Strontium-89 (89Sr) primarily excreted from the body?
What leukocyte count is considered a contraindication for the use of Strontium-89 therapy?
What leukocyte count is considered a contraindication for the use of Strontium-89 therapy?
What is the range of the soft-tissue for Samarium-153 lexidronam?
What is the range of the soft-tissue for Samarium-153 lexidronam?
What is the primary elimination route of Radium-223 (223Ra) after injection?
What is the primary elimination route of Radium-223 (223Ra) after injection?
What is the recommended dose of Samarium-153 lexidronam?
What is the recommended dose of Samarium-153 lexidronam?
What is the typical dose range for Strontium-89 chloride therapy?
What is the typical dose range for Strontium-89 chloride therapy?
What percentage of patients typically experience pain relief with Samarium-153 lexidronam therapy?
What percentage of patients typically experience pain relief with Samarium-153 lexidronam therapy?
What distinguishes the range of alpha-particles from beta-emitters in tissue?
What distinguishes the range of alpha-particles from beta-emitters in tissue?
What distinguishes Radium-223 (223Ra) from beta-emitters regarding elimination pathways?
What distinguishes Radium-223 (223Ra) from beta-emitters regarding elimination pathways?
