Dr. Frank A. DiBianca Profile

Dr. Frank A. DiBianca

Dean at Univ of Tennessee Health Science Ctr

SPIE Involvement:

Author

Publications (44)

Proceedings Article | 19 March 2008 Paper

Analysis of axial spatial resolution in a variable resolution x-ray cone beam CT (VRX-CBCT) system

Bahram Dahi, Gary Keyes, David Rendon, Frank DiBianca

Proceedings Volume 6913, 69134Y (2008) https://doi.org/10.1117/12.773068

KEYWORDS: Modulation transfer functions, Spatial resolution, X-ray computed tomography, Sensors, X-rays, Reconstruction algorithms, Scintillators, Image resolution, X-ray detectors, Calibration

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Proceedings Article | 18 March 2008 Paper

Reconstruction artifacts in VRX CT scanner images

David Rendon, Frank DiBianca, Gary Keyes

Proceedings Volume 6913, 691337 (2008) https://doi.org/10.1117/12.773031

KEYWORDS: Scanners, Sensors, Bone, X-ray computed tomography, X-rays, Calibration, X-ray detectors, CT reconstruction, Spatial resolution, Computer simulations

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Proceedings Article | 15 March 2007 Paper

Performance analysis of a CsI-based flat panel detector in a cone beam variable resolution x-ray system

Bahram Dahi, Gary Keyes, David Rendon, Frank DiBianca

Proceedings Volume 6510, 65104B (2007) https://doi.org/10.1117/12.710180

KEYWORDS: Modulation transfer functions, Sensors, X-rays, X-ray computed tomography, Spatial resolution, X-ray detectors, Image resolution, Reconstruction algorithms, Calibration, Scintillators

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Proceedings Article | 15 March 2007 Paper

Comparison of multi-arm VRX CT scanners through computer models

David Rendon, Frank DiBianca, Gary Keyes

Proceedings Volume 6510, 65103Y (2007) https://doi.org/10.1117/12.710153

KEYWORDS: Scanners, Spatial resolution, Modulation transfer functions, X-ray computed tomography, Sensors, Signal to noise ratio, Image resolution, Computer simulations, X-rays, Target detection

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Proceedings Article | 20 April 2005 Paper

A backscattered x-ray imager for medical applications

Eric Jude Morris, Frank Dibianca, Hemant Shukla, Daya Gulabani

Proceedings Volume 5745, (2005) https://doi.org/10.1117/12.595507

KEYWORDS: Signal to noise ratio, X-rays, Photons, Backscatter, X-ray imaging, Sensors, Medical imaging, Monte Carlo methods, Calcium, Radiography

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Proceedings Article | 20 April 2005 Paper

Four-arm variable-resolution x-ray detector for CT target imaging

Frank DiBianca, Daya Gulabani, Lawrence Jordan, Sravanthi Vangala, David Rendon, Joseph Laughter, Roman Melnyk, M. Gaber, Gary Keyes

Proceedings Volume 5745, (2005) https://doi.org/10.1117/12.594102

KEYWORDS: Sensors, X-ray detectors, Target detection, X-rays, X-ray computed tomography, Spatial resolution, Image resolution, Scanners, Signal detection, X-ray imaging

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Proceedings Article | 14 April 2005 Paper

Volumetric analysis of tumors in rodents using the variable resolution x-ray (VRX) CT-scanner

M. Waleed Gaber, Christy Wilson, Christopher Duntsch, Hemant Shukla, Janice Zawaski, Lawrence Jordan, David Rendon, Sravanthi Vangalaa, Gary Keyes, Frank DiBianca

Proceedings Volume 5746, (2005) https://doi.org/10.1117/12.595786

KEYWORDS: Tumors, X-rays, Optical spheres, X-ray computed tomography, Brain, X-ray imaging, Imaging systems, Image resolution, Neuroimaging, Animal model studies

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Proceedings Article | 6 April 2005 Paper

An automated image evaluation procedure for computed tomography systems

Keana Allert, Frank DiBianca

Proceedings Volume 5749, (2005) https://doi.org/10.1117/12.595744

KEYWORDS: Image quality, Computed tomography, X-ray computed tomography, Modulation transfer functions, Computer simulations, Imaging systems, Image analysis, Spatial resolution, Diagnostics, Signal attenuation

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Proceedings Article | 5 June 2003 Paper

Study of the detective quantum efficiency for the kinestatic charge detector as a megavoltage imaging device

Sanjiv Samant, Arun Gopal, Frank DiBianca

Proceedings Volume 5030, (2003) https://doi.org/10.1117/12.482402

KEYWORDS: Modulation transfer functions, Monte Carlo methods, Sensors, Imaging systems, Prototyping, Quantum efficiency, Spatial resolution, Xenon, Signal to noise ratio, Spatial frequencies

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Proceedings Article | 5 June 2003 Paper

Monte Carlo study of x-ray cross talk in a variable resolution x-ray detector

Roman Melnyk, Frank DiBianca

Proceedings Volume 5030, (2003) https://doi.org/10.1117/12.480014

KEYWORDS: Sensors, X-rays, X-ray detectors, Monte Carlo methods, Scanners, Spatial resolution, X-ray computed tomography, Collimators, Lead, Tungsten

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Proceedings Article | 28 June 2001 Paper

Comparison of VRX CT scanners geometries

Frank DiBianca, Roman Melnyk, Christopher Duckworth, Stephan Russ, Lawrence Jordan, Joseph Laughter

Proceedings Volume 4320, (2001) https://doi.org/10.1117/12.430890

KEYWORDS: Sensors, X-rays, X-ray detectors, X-ray computed tomography, Spatial resolution, Monte Carlo methods, Modulation transfer functions, Scanners, Microscopy, Detector arrays

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Proceedings Article | 25 April 2000 Paper

Processing of CT sinograms acquired using a VRX detector

Lawrence Jordan, Frank DiBianca, Ping Zou, Joseph Laughter, Herbert Zeman

Proceedings Volume 3977, (2000) https://doi.org/10.1117/12.384534

KEYWORDS: Sensors, Fluctuations and noise, X-ray computed tomography, Prototyping, X-rays, Detector arrays, Signal attenuation, Collimators, Chromium, X-ray detectors

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Proceedings Article | 25 April 2000 Paper

Solid state VRX CT detector

Frank DiBianca, Roman Melnyk, Aniket Sambari, Lawrence Jordan, Joseph Laughter, Ping Zou

Proceedings Volume 3977, (2000) https://doi.org/10.1117/12.384494

KEYWORDS: Sensors, Modulation transfer functions, Solid state electronics, Signal to noise ratio, X-ray detectors, X-rays, Scintillators, Signal detection, Data acquisition, X-ray computed tomography

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Proceedings Article | 28 May 1999 Paper

New calibration technique for KCD-based megavoltage imaging

Sanjiv Samant, Wei Zheng, Frank DiBianca, Herbert Zeman, Joseph Laughter

Proceedings Volume 3659, (1999) https://doi.org/10.1117/12.349559

KEYWORDS: Calibration, Signal to noise ratio, Imaging systems, Spatial resolution, Sensors, Data acquisition, Modulation transfer functions, X-rays, Digital imaging, Prototyping

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In megavoltage imaging, current commercial electronic portal imaging devices (EPIDs), despite having the advantage of immediate digital imaging over film, suffer from poor image contrast and spatial resolution. The feasibility of using a kinestatic charge detector (KCD) as an EPID to provide superior image contrast and spatial resolution for portal imaging has already been demonstrated in a previous paper. The KCD system had the additional advantage of requiring an extremely low dose per acquired image, allowing for superior imaging to be reconstructed form a single linac pulse per image pixel. The KCD based images utilized a dose of two orders of magnitude less that for EPIDs and film. Compared with the current commercial EPIDs and film, the prototype KCD system exhibited promising image qualities, despite being handicapped by the use of a relatively simple image calibration technique, and the performance limits of medical linacs on the maximum linac pulse frequency and energy flux per pulse delivered. This image calibration technique fixed relative image pixel values based on a linear interpolation of extrema provided by an air-water calibration, and accounted only for channel-to-channel variations. The counterpart of this for area detectors is the standard flat fielding method. A comprehensive calibration protocol has been developed. The new technique additionally corrects for geometric distortions due to variations in the scan velocity, and timing artifacts caused by mis-synchronization between the linear accelerator and the data acquisition system (DAS). The role of variations in energy flux (2 - 3%) on imaging is demonstrated to be not significant for the images considered. The methodology is presented, and the results are discussed for simulated images. It also allows for significant improvements in the signal-to- noise ratio (SNR) by increasing the dose using multiple images without having to increase the linac pulse frequency or energy flux per pulse. The application of this protocol to a KCD system under construction is expected shortly.

Proceedings Article | 28 May 1999 Paper

Ultrahigh-resolution CT and DR scanner

Frank DiBianca, Vivek Gupta, Ping Zou, Lawrence Jordan, Joseph Laughter, Herbert Zeman, Jeno Sebes

Proceedings Volume 3659, (1999) https://doi.org/10.1117/12.349526

KEYWORDS: Sensors, X-ray computed tomography, X-rays, X-ray detectors, Scanners, Modulation transfer functions, Image resolution, Spatial resolution, Reconstruction algorithms, Data acquisition

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Proceedings Article | 28 May 1999 Paper

Development of a clinical KCD digital radiography system

Keana Davis, Frank DiBianca, Joseph Laughter

Proceedings Volume 3659, (1999) https://doi.org/10.1117/12.349542

KEYWORDS: Sensors, Radiography, Imaging systems, X-rays, Prototyping, X-ray imaging, Image resolution, Image quality, X-ray detectors, Spatial resolution

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Proceedings Article | 21 May 1999 Paper

Adaptive median filter algorithm to remove impulse noise in x-ray and CT images and speckle in ultrasound images

Amit Sawant, Herbert Zeman, Diane Muratore, Sanjiv Samant, Frank DiBianca

Proceedings Volume 3661, (1999) https://doi.org/10.1117/12.348522

KEYWORDS: Digital filtering, Image filtering, Speckle, X-ray imaging, Ultrasonography, Image processing, X-rays, Optical filters, Image resolution, X-ray computed tomography

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Proceedings Article | 24 July 1998 Paper

Advanced clinical KCD scanner for digital radiography

Frank DiBianca, Keana Davis, Lawrence Jordan, Joseph Laughter, Anand Krishnamurthy, Bo Hu

Proceedings Volume 3336, (1998) https://doi.org/10.1117/12.317013

KEYWORDS: X-rays, Sensors, Prototyping, Data acquisition, Radiography, Scanners, X-ray imaging, X-ray detectors, Carbon, Krypton

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Proceedings Article | 24 July 1998 Paper

Development of portal CT reconstruction using MLS-ART technique and the kinestatic charge detector imaging system: I. Low-energy x-ray studies

M. Waleed Gaber, Huaiqun Guan, Frank DiBianca, Sanjiv Samant, Yunping Zhu

Proceedings Volume 3336, (1998) https://doi.org/10.1117/12.317077

KEYWORDS: Sensors, Reconstruction algorithms, X-ray computed tomography, X-rays, CT reconstruction, X-ray detectors, Computed tomography, Imaging systems, Image sensors, Diagnostics

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Proceedings Article | 24 July 1998 Paper

Dual-energy decomposition using a kinestatic charge detector

Robert Endorf, Vincent Schmithorst, Sunil Kulatunga, David Spelic, Stephen Thomas, Frank DiBianca, Carlos Rodriguez, Herbert Zeman, Zeping Zhu, George Giakos

Proceedings Volume 3336, (1998) https://doi.org/10.1117/12.317075

KEYWORDS: Sensors, Aluminum, Photons, Radiography, Calibration, X-rays, Bone, Computer simulations, Signal attenuation, X-ray detectors

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Proceedings Article | 2 May 1997 Paper

Use of a kinestatic charge detector for megavoltage portal imaging

Frank DiBianca, Sanjiv Samant, Joseph Laughter, Jacob Rasmussen, Carlos Rodriguez

Proceedings Volume 3032, (1997) https://doi.org/10.1117/12.273985

KEYWORDS: Imaging systems, Monte Carlo methods, Sensors, Modulation transfer functions, Spatial resolution, Energy efficiency, Image quality, Quantum efficiency, X-rays, Image resolution

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