نتایج جستجو برای: x radiography

تعداد نتایج: 632910  

Journal: :Quantitative imaging in medicine and surgery 2016
Farheen Manji Jiheng Wang Geoff Norman Zhou Wang David Koff

BACKGROUND Dual energy subtraction (DES) radiography is a powerful but underutilized technique which aims to improve the diagnostic value of an X-ray by separating soft tissue from bones, producing two different images. Compared to traditional chest X-rays, DES requires exposure to higher doses of radiation but may achieve higher accuracy. The objective of this study was to assess the clinical ...

2008
Frank HEROLD

X-Rays are used as reliable technique for today’s quality assurance of safety critical parts, for example in the automotive or in the aerospace industry. Radiography systems are used to ensure a high throughput in the field of hundred percent testing of a batch. In such systems digital images are acquired by using either flat-panel detectors with a high dynamic range or image intensifiers inclu...

Journal: :Journal of Physics: Conference Series 2020

Journal: :Spine surgery and related research 2023

Purpose: We investigated the relationships between patient factors, including obesity, osteopenia, and scoliosis, reliability of measures spinopelvic sagittal parameters using conventional X-radiography (Xp) slot-scanning Xp devices (EOS) examined differences in interobserver measurement them.

2008
Alessandro Martins da Costa Linda V. E. Caldas

OBJECTIVE: To develop a double-faced plane-parallel ionization chamber for measurement of air kerma and air kerma rate in X-radiation fields utilized in conventional radiography and mammography. MATERIALS AND METHODS: The chamber has entrance windows made of aluminized polyester film, inner and guard electrodes of aluminum at one side (face A) and graphite at the other side (face G). The presen...

Journal: :The Cochrane database of systematic reviews 1984
M Døssing E Lynge

BACKGROUND The effectiveness of screening for lung cancer with chest radiography, sputum cytology or spiral CT has not been established. OBJECTIVES To determine whether screening for lung cancer using regular sputum examinations or chest radiography or CT chest reduces lung cancer mortality. SEARCH STRATEGY Electronic databases, bibliographies, hand searching of a journal and discussion wit...

Journal: :Journal of the Korean Society of Radiology 2011

Journal: :Japanese Journal of Radiological Technology 1989

Journal: :THE JOURNAL OF THE STOMATOLOGICAL SOCIETY,JAPAN 1962

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید