Search Results - "Iwanczyk, Jan S"

Vision 20/20: Single photon counting x-ray detectors in medical imaging by Taguchi, Katsuyuki, Iwanczyk, Jan S.

“…Photon counting detectors (PCDs) with energy discrimination capabilities have been developed for medical x-ray computed tomography (CT) and x-ray (XR) imaging…”
Get full text

An analytical model of the effects of pulse pileup on the energy spectrum recorded by energy resolved photon counting x-ray detectors by Taguchi, Katsuyuki, Frey, Eric C., Wang, Xiaolan, Iwanczyk, Jan S., Barber, William C.

“…Purpose: Recently, novel CdTe photon counting x-ray detectors (PCXDs) with energy discrimination capabilities have been developed. When such detectors are…”
Get full text

A cascaded model of spectral distortions due to spectral response effects and pulse pileup effects in a photon-counting x-ray detector for CT by Cammin, Jochen, Xu, Jennifer, Barber, William C., Iwanczyk, Jan S., Hartsough, Neal E., Taguchi, Katsuyuki

“…Purpose: Energy discriminating, photon-counting detectors (PCDs) are an emerging technology for computed tomography (CT) with various potential benefits for…”
Get full text

Modeling the performance of a photon counting x-ray detector for CT: Energy response and pulse pileup effects by Taguchi, Katsuyuki, Zhang, Mengxi, Frey, Eric C., Wang, Xiaolan, Iwanczyk, Jan S., Nygard, Einar, Hartsough, Neal E., Tsui, Benjamin M. W., Barber, William C.

“…Purpose: Recently, photon counting x-ray detectors (PCXDs) with energy discrimination capabilities have been developed for potential use in clinical computed…”
Get full text

Photon Counting Energy Dispersive Detector Arrays for X-ray Imaging by Iwanczyk, J.S., Nygard, E., Meirav, O., Arenson, J., Barber, W.C., Hartsough, N.E., Malakhov, N., Wessel, J.C.

“…The development of an innovative detector technology for photon-counting in X-ray imaging is reported. This new generation of detectors, based on pixellated…”
Get full text

Assessment of multi‐energy inter‐pixel coincidence counters for photon‐counting detectors at the presence of charge sharing and pulse pileup: A simulation study by Taguchi, Katsuyuki, Iwanczyk, Jan S.

“…Purpose Spectral distortion due to charge sharing (CS) and pulse pileup (PP) in photon‐counting detectors (PCDs) degrades the quality of PCD data. We recently…”
Get full text

Quantitative fluorescence tomography using a combined tri-modality FT/DOT/XCT system by Lin, Yuting, Barber, William C, Iwanczyk, Jan S, Roeck, Werner, Nalcioglu, Orhan, Gulsen, Gultekin

“…In this work, a first-of-its-kind fully integrated tri-modality system that combines fluorescence, diffuse optical and x-ray tomography (FT/DOT/XCT) into the…”
Get full text

Polycrystalline Mercuric Iodide Films on CMOS Readout Arrays by Hartsough, N.E., Iwanczyk, J.S., Nygard, E., Malakhov, N., Barber, W.C., Gandhi, T.

“…We have created high-resolution x-ray imaging devices using polycrystalline mercuric iodide (HgI 2 ) films grown directly onto CMOS readout chips using a…”
Get full text

Characterization of energy response for photon‐counting detectors using x‐ray fluorescence by Ding, Huanjun, Cho, Hyo‐Min, Barber, William C., Iwanczyk, Jan S., Molloi, Sabee

“…Purpose: To investigate the feasibility of characterizing a Si strip photon‐counting detector using x‐ray fluorescence. Methods: X‐ray fluorescence was…”
Get full text

Characteristic performance evaluation of a photon counting Si strip detector for low dose spectral breast CT imaging by Cho, Hyo‐Min, Barber, William C., Ding, Huanjun, Iwanczyk, Jan S., Molloi, Sabee

“…Purpose: The possible clinical applications which can be performed using a newly developed detector depend on the detectorˈs characteristic performance in a…”
Get full text

Microcalcification detectability using a bench‐top prototype photon‐counting breast CT based on a Si strip detector by Cho, Hyo‐Min, Ding, Huanjun, Barber, William C., Iwanczyk, Jan S., Molloi, Sabee

“…Purpose: To investigate the feasibility of detecting breast microcalcification (μCa) with a dedicated breast computed tomography (CT) system based on…”
Get full text

Quantitative fluorescence tomography using a trimodality system: in vivo validation by Lin, Yuting, Barber, William C, Iwanczyk, Jan S, Roeck, Werner W, Nalcioglu, Orhan, Gulsen, Gultekin

“…A fully integrated trimodality fluorescence, diffuse optical, and x-ray computed tomography (FT/DOT/XCT) system for small animal imaging is reported in this…”
Get full text

Intraoperative gamma imaging of axillary sentinel lymph nodes in breast cancer patients by Aarsvod, John N., Greene, Carmen M., Mintzer, Robert A., Grant, Sandra F., Styblo, Toncred M., Alazraki, Naomi P., Patt, Bradley E., Caravaglia, Gina M., Li, Joshua, Iwanczyk, Jan S.

“…Sentinel lymph node (SLN) biopsy is now standard practice in the management of many breast cancer patients. Localization protocols vary in complexity and rates…”
Get full text

A 3D gantry single photon emission tomograph with hemispherical coverage for dedicated breast imaging by Tornai, Martin P, Bowsher, James E, Archer, Caryl N, Peter, Jörg, Jaszczak, Ronald J, MacDonald, Lawrence R, Patt, Bradley E, Iwanczyk, Jan S

“…A novel tomographic gantry was designed, built and initially evaluated for single photon emission imaging of metabolically active lesions in the pendant breast…”
Get full text

Intraoperative probes and imaging probes by Hoffman, E J, Tornai, M P, Janecek, M, Patt, B E, Iwanczyk, J S

“…Intraoperative probes have been employed to assist in the detection and removal of tumors for more than 50 years. For a period of about 40 years, essentially…”
Get full text

Energy response of a room-temperature cadmium telluride (CdTe) photon-counting detector for simultaneous and sequential CT and SPECT by Shih-ying Huang, Alhassen, Fares, Hernandez, Andrew M., Gould, Robert G., Youngho Seo, Barber, William C., Barber, Jan S. Iwanczyk, Hartsough, Neal E., Gandhi, Thulasidharan, Wessel, Jan C.

“…Semiconductor radiation detectors are a promising technology for single photon counting detectors. Unlike scintillator-based indirect radiation detectors,…”
Get full text

A novel silicon array designed for intraoperative charged particle imaging by Tornai, Martin P., Patt, Bradley E., Iwanczyk, Jan S., Tull, Carolyn R., MacDonald, Lawrence R., Hoffman, Edward J.

“…A novel Si-PIN imaging array is under investigation for a charged particle (beta, positron, or alpha) sensitive intraoperative camera to be used for (residual)…”
Get full text

Improved scintimammography using a high-resolution camera mounted on an upright mammography gantry by Itti, Emmanuel, Patt, Bradley E, Diggles, Linda E, MacDonald, Lawrence, Iwanczyk, Jan S, Mishkin, Fred S, Khalkhali, Iraj

“…99mTc-sestamibi scintimammography (SMM) is a useful adjunct to conventional X-ray mammography (XMM) for the assessment of breast cancer. An increasing number…”
Get full text

Intravascular probe for detection of vulnerable plaque by Janecek, Martin, Patt, Bradley E, Iwanczyk, Jan S, MacDonald, Lawrence, Yamaguchi, Yuko, William Strauss, H, Tsugita, Ross, Ghazarossian, Vartan, Hoffman, Edward J

“…Coronary angiography defines geometry of lumen of artery. However, perhaps 70% of heart attacks occur when minimally obstructive thin capped fibroatheroma…”
Get more information

High flux energy-resolved photon-counting x-ray imaging arrays with CdTe and CdZnTe for clinical CT by Barber, William C., Wessel, Jan C., Nygard, Einar, Malakhov, Nail, Wawrzyniak, Gregor, Hartsough, Neal E., Gandhi, Thulasidharan, Dorholt, Ole, Danielsen, Roar, Iwanczyk, Jan S.

“…We have fabricated fast room-temperature energy dispersive photon counting x-ray imaging arrays using pixellated cadmium zinc (CdTe) and cadmium zinc telluride…”
Get full text