Postoperative follow-up of olecranon fracture by digital tomosynthesis radiography

Machida, Haruhiko; Yuhara, Toshiyuki; Sabol, John M.; Tamura, Mieko; Shimada, Yutaka; Ueno, Eiko

doi:10.1007/s11604-011-0589-3

Cited by 18 publications

(11 citation statements)

References 8 publications

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“…For orthopedic applications, DT has been reported to be advantageous for improved imaging of complex anatomic structures, subtle fractures, and the articular surface of joints compared with conventional radiography (11)(12)(13)(14)(15)(16). Specifically, compared with conventional radiography, DT allows easier detection of fractures and can even demonstrate occult fractures not visible at conventional radiography (13) with less tissue overlap, better anatomic visualization, less dependence on the technical skill of the radiographers, and reduced need for painful patient positioning or multiple projections of different views in patients with suspected fractures of fine and complex osseous structures, including carpal bones (eg, scaphoid bone [Fig 8]), metacarpal bones, and tarsal bones (Fig 9).…”

Section: Orthopedic Imagingmentioning

confidence: 99%

“…Manufacturers, such as Hologic and GE Healthcare, offer upgrade paths for standard mammography systems to become breast tomosynthesis capable. Other than DBT, DT is also advantageous in a variety of clinical contexts, including chest, head and neck, orthopedic, and emergency imaging (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18). The aims of this article are (a) to provide radiologists and radiologic technologists with knowledge about the basic facts and acquisition technique of DT, (b) to illustrate whole-body applications of DT by presenting a broad variety of clinical images, and (c) to demonstrate the clinical utilities and limitations of DT for these applications.…”

Section: Introductionmentioning

confidence: 99%

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Whole-Body Clinical Applications of Digital Tomosynthesis

Machida

Yuhara²,

Tamura³

et al. 2016

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With flat-panel detector mammography, radiography, and fluoroscopy systems, digital tomosynthesis (DT) has been recently introduced as an advanced clinical application that removes overlying structures, enhances local tissue separation, and provides depth information about structures of interest by providing high-quality tomographic images. DT images are generated from projection image data, typically using filtered back-projection or iterative reconstruction. These low-dose x-ray projection images are easily and swiftly acquired over a range of angles during a single linear or arc sweep of the x-ray tube assembly. DT is advantageous in a variety of clinical contexts, including breast, chest, head and neck, orthopedic, emergency, and abdominal imaging. Specifically, compared with conventional mammography, radiography, and fluoroscopy, as a result of reduced tissue overlap DT can improve detection of breast cancer, pulmonary nodules, sinonasal mucosal thickening, and bone fractures and delineation of complex anatomic structures such as the ostiomeatal unit, atlantoaxial joint, carpal and tarsal bones, and pancreatobiliary and gastrointestinal tracts. Compared with computed tomography, DT offers reduced radiation exposure, better in-plane resolution to improve assessment of fine bony changes, and less metallic artifact, improving postoperative evaluation of patients with metallic prostheses and osteosynthesis materials. With more flexible patient positioning, DT is also useful for functional, weight-bearing, and stress tests. To optimize patient management, a comprehensive understanding of the clinical applications and limitations of whole-body DT applications is important for improvement of diagnostic quality, workflow, and cost-effectiveness. Online supplemental material is available for this article. (©)RSNA, 2016.

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Section: Orthopedic Imagingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Whole-Body Clinical Applications of Digital Tomosynthesis

Machida

Yuhara²,

Tamura³

et al. 2016

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“…A study of a larger prospective series of wrist fractures [16] showed tomosynthesis to be more useful than radiography but less useful than CT in fracture detection. A few studies have addressed hardware imaging with tomosynthesis, and the results suggest that there may be less artifact than in CT [17][18][19].…”

Section: Digital Tomosynthesis Of Fracturesmentioning

confidence: 99%

Digital Tomosynthesis to Evaluate Fracture Healing: Prospective Comparison With Radiography and CT

Lee

Hippe

et al. 2015

American Journal of Roentgenology

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“…Some are simple case collections (16,18,19,21); one is a scientific study but with no reported reliability assessment (20). Only three studies have reported reliability of tomosynthesis for assessment of skeletal pathology.…”

Section: Discussionmentioning

confidence: 99%

Reliability of semiquantitative assessment of osteophytes and subchondral cysts on tomosynthesis images by radiologists with different levels of expertise

Hayashi

Gusenburg³

et al. 2014

Diagn Interv Radiol

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ORIGINAL ARTICLE PURPOSE We aimed to assess reliability of the evaluation of osteophytes and subchondral cysts on tomosynthesis images when read by radiologists with different levels of expertise. MATERIALS AND METHODSForty subjects aged >40 years had both knees evaluated using tomosynthesis. Images were read by an "experienced" reader (musculoskeletal radiologist with prior experience) and an "inexperienced" reader (radiology resident with no prior experience). Readers graded osteophytes from 0 to 3 and noted the presence/absence of subchondral cysts in four locations of the tibiofemoral joint. Twenty knees were randomly selected and re-read. Inter-and intrareader reliabilities were calculated using overall exact percent agreement and weighted κ statistics. Diagnostic performance of the two readers was compared against magnetic resonance imaging readings by an expert reader (professor of musculoskeletal radiology). RESULTSThe experienced reader showed substantial intrareader reliability for graded reading of osteophytes (90%, κ=0.93), osteophyte detection (95%, κ=0.86) and cyst detection (95%, κ=0.83). The inexperienced reader showed perfect intrareader reliability for cyst detection (100%, κ=1.00) but intrareader reliability for graded reading (75%, κ=0.79) and detection (80%, κ=0.61) of osteophytes was lower than the experienced reader. Inter-reader reliability was 61% (κ=0.72) for graded osteophyte reading, 91% (κ=0.82) for osteophyte detection, and 88% (κ=0.66) for cyst detection. Diagnostic performance of the experienced reader was higher than the inexperienced reader regarding osteophyte detection (sensitivity range 0.74-0.95 vs. 0.54-0.75 for all locations) but diagnostic performance was similar for subchondral cysts. CONCLUSION Tomosynthesis offers excellent intrareader reliability regardless of the reader experience, but experience is important for detection of osteophytes.

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Postoperative follow-up of olecranon fracture by digital tomosynthesis radiography

Cited by 18 publications

References 8 publications

Whole-Body Clinical Applications of Digital Tomosynthesis

Whole-Body Clinical Applications of Digital Tomosynthesis

Digital Tomosynthesis to Evaluate Fracture Healing: Prospective Comparison With Radiography and CT

Reliability of semiquantitative assessment of osteophytes and subchondral cysts on tomosynthesis images by radiologists with different levels of expertise

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