Microfocal Techniques in Quantitative Radiography: Measurement of Cancellous Bone Organization
نویسندگان
چکیده
منابع مشابه
Microfocal techniques in quantitative radiography: measurement of cancellous bone organization.
Microfocal radiography records, with unusually good resolution, the detailed structural organization of cancellous bone. A textural imaging method, fractal signature analysis (FSA), was used to quantify the horizontal and vertical trabecular organization recorded within macroradiographic images of the spine of post-menopausal women and the tibia in osteoarthritic knees, and the analysis of vari...
متن کاملQuantitative microfocal radiography accurately detects joint changes in rheumatoid arthritis.
Microfocal radiography, producing x5 magnified images of the wrist and hands with a high spacial resolution (25 microns) in the film, permitted direct measurement of erosion area and joint space width in patients with rheumatoid arthritis. The magnitude of errors relating to direct measurement, repositioning the wrist and hand on successive x ray visits, repeated identification of erosions and ...
متن کاملComparing the Accuracy of Cone Beam Computed Tomography,Digital Intraoral Radiography and Conventional Intraoral Radiography in the Measurement of Periodontal Bone Defects
Background and Aim: Cone beam computed tomography (CBCT) produces high-quality data in periodontal diagnosis and treatment planning. The aim of this study was to compare the accuracy of CBCT with intraoral digital and conventional radiography in the measurement of periodontal bone defects. Methods and Materials: In this diagnostic research, two hundred and eighteen artificial osseous d...
متن کاملQuantitative radiography of osteoarthritis.
Radiography is important in the diagnosis of osteoarthritis (OA) as the features described in the pathology of the disease can be visualised, with joint space narrowing generally thought to reflect cartilage loss.' Plain film radiography provides excellent detail of bony features but is generally poor at defining soft tissue structures, except with the help of an invasive procedure involving th...
متن کاملMonte Carlo radiography simulation for assessment of absorbed radiation dose in femur bone marrow during X-ray radiography for constant mAs and AEC techniques
Background: The purpose of this study was to find the accurate absorbed dose in the femur bone marrow during the X-ray radiography for constant mAs and AEC techniques. Materials and Methods: The DOSXYZnrc was used to simulate radiation doses in two human femurs during diagnostic radiography. EGSnrc phantoms produced from actual CT images of human femurs were modified by adding seven micrometre ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Rheumatology
سال: 1996
ISSN: 1462-0324,1462-0332
DOI: 10.1093/rheumatology/35.suppl_3.18