Effect of acquisition parameters on image quality in digital tomosynthesis

Deller, Timothy; Jabri, Kadri N.; Sabol, John M.; Ni, Xianfeng; Avinash, Gopal B.; Saunders, Rowland; Uppaluri, Renuka

doi:10.1117/12.713777

Cited by 26 publications

(29 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is expressed in the tomosynthesis images as out-of-plane artifacts [47]. By increasing the angular range, the magnitude of the out-of-plane artifacts, characterized by the artifact spread function (ASF) [39], will be reduced [48][49][50]. On the other hand, a larger angular range could result in increased in-plane artifacts [51], as well as a longer image acquisition time.…”

Section: Technical Aspects Of Bt Image Volume Acquisitionmentioning

confidence: 99%

Digital mammography and tomosynthesis for breast cancer diagnosis

Tingberg

Zackrisson

2011

Expert Opinion on Medical Diagnostics

View full text Add to dashboard Cite

Section: Technical Aspects Of Bt Image Volume Acquisitionmentioning

confidence: 99%

Digital mammography and tomosynthesis for breast cancer diagnosis

Tingberg

Zackrisson

2011

Expert Opinion on Medical Diagnostics

View full text Add to dashboard Cite

“…10,11 Larger angular coverage leads to better in-depth resolution. 34,51,52 However, owing to the size limit of intraoral digital sensors, a larger tomosynthesis angular coverage will result in a smaller field of view limiting the clinical usefulness of the technology. The flexibility of the CNT source array also allows a non-linear-shaped source array that may improve the image quality.…”

Section: Figurementioning

confidence: 99%

Stationary intraoral digital tomosynthesis using a carbon nanotube X-ray source array

Shan¹,

Tucker²,

Gaalaas³

et al. 2015

Dentomaxillofacial Radiology

View full text Add to dashboard Cite

Objectives: Intraoral dental tomosynthesis and closely related tuned-aperture CT (TACT) are low-dose three-dimensional (3D) imaging modalities that have shown improved detection of multiple dental diseases. Clinical interest in implementing these technologies waned owing to their time-consuming nature. Recently developed carbon nanotube (CNT) X-ray sources allow rapid multi-image acquisition without mechanical motion, making tomosynthesis a clinically viable technique. The objective of this investigation was to evaluate the feasibility of and produce high-quality images from a digital tomosynthesis system employing CNT X-ray technology. Methods: A test-bed stationary intraoral tomosynthesis unit was constructed using a CNT X-ray source array and a digital intraoral sensor. The source-to-image distance was modified to make the system comparable in image resolution to current two-dimensional intraoral radiography imaging systems. Anthropomorphic phantoms containing teeth with simulated and real caries lesions were imaged using a dose comparable to D-speed film dose with a rectangular collimation. Images were reconstructed and analysed. Results: Tomosynthesis images of the phantom and teeth specimen demonstrated perceived image quality equivalent or superior to standard digital images with the added benefit of 3D information. The ability to "scroll" through slices in a buccal-lingual direction significantly improved visualization of anatomical details. In addition, the subjective visibility of dental caries was increased. Conclusions: Feasibility of the stationary intraoral tomosynthesis is demonstrated. The results show clinical promise and suitability for more robust observer and clinical studies.

show abstract

“…27 Various efforts are underway to compare these algorithms to one another 26,27,[39][40][41] and to determine the optimum set of acquisition parameters. 15,[42][43][44][45] There is also ongoing work to determine the best visual presentation of tomosynthesis images. Subjectively, images processed and reconstructed with deblurring algorithms can have a "high-pass filtered appearance" and may lose some of the overall grayscale range typical of conventional chest or breast imaging.…”

Section: Iva1 Reconstruction Algorithmsmentioning

confidence: 99%

Tomosynthesis imaging: At a translational crossroads

2009

View full text Add to dashboard Cite

Tomosynthesis is a decades-old technique for section imaging that has seen a recent upsurge in interest due to its promise to provide three-dimensional information at lower dose and potentially lower cost than CT in certain clinical imaging situations. This renewed interest in tomosynthesis began in the late 1990s as a new generation of flat-panel detectors became available; these detectors were the one missing piece of the picture that had kept tomosynthesis from enjoying significant utilization earlier. In the past decade, tomosynthesis imaging has been investigated in a variety of clinical imaging situations, but the two most prominent have been in breast and chest imaging. Tomosynthesis has the potential to substantially change the way in which breast cancer and pulmonary nodules are detected and managed. Commercial tomosynthesis devices are now available or on the horizon. Many of the remaining research activities with tomosynthesis will be translational in nature and will involve physicist and clinician alike. This overview article provides a forwardlooking assessment of the translational questions facing tomosynthesis imaging and anticipates some of the likely research and clinical activities in the next five years. © 2009 American Association of Physicists in Medicine. ͓DOI: 10.1118/1.3120285͔ Key words: tomosynthesis, breast imaging, chest imaging, tomography I. OVERVIEWDigital tomosynthesis is a simple and relatively inexpensive method of producing section images using conventional digital x-ray equipment. It is a form of limited angle tomography that produces section, or "slice," images from a series of projection images acquired as the x-ray tube moves over a prescribed path. The total angular range of movement is often less than 40°. Because the projection images are not acquired over a full 360°rotation about the patient, the resolution in the z direction ͑i.e., in the depth direction perpendicular to the x-y plane of the projection images͒ is limited, and thus tomosynthesis does not produce the isotropic spatial resolution achievable with computed tomography ͑CT͒. However, the resolution of images in the x-y plane of the reconstructed slices is often superior to CT, and the ease of use in conjunction with conventional radiography makes tomosynthesis a potentially quite useful imaging modality.There has been a high degree of research interest in tomosynthesis imaging in the past decade, and at least two commercial products have recently been approved by the Food and Drug Administration ͑FDA͒ and released on the market. It is expected that other approved devices will soon follow. As such, tomosynthesis imaging is in a period of a high rate of change, with an increasing number of investigators and manufacturers nearing completion of projects involving both the physics and clinical aspects of the technique. If one were to compare the current state of tomosynthesis imaging to a metaphorical calendar year, the field is firmly in the middle of spring. It has moved beyond the "winter" of initial research ...

show abstract

Effect of acquisition parameters on image quality in digital tomosynthesis

Cited by 26 publications

References 2 publications

Digital mammography and tomosynthesis for breast cancer diagnosis

Digital mammography and tomosynthesis for breast cancer diagnosis

Stationary intraoral digital tomosynthesis using a carbon nanotube X-ray source array

Tomosynthesis imaging: At a translational crossroads

Contact Info

Product

Resources

About