Search Results - "Chakraborty, D. P."

Environmental and familial risk factors of Parkinsons disease: case-control study by Sanyal, Jaya, Chakraborty, D P, Sarkar, Biswanath, Banerjee, Tapas Kumar, Mukherjee, Subhash Chandra, Ray, Bidhan Chandra, Rao, V R

“…While the cause of Parkinson's disease (PD) remains unknown, evidence suggests certain environmental factors, such as well water drinking, herbicides,…”
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Effect of reconstruction methods and x-ray tube current–time product on nodule detection in an anthropomorphic thorax phantom: A crossed-modality JAFROC observer study by Thompson, J. D., Chakraborty, D. P., Szczepura, K., Tootell, A. K., Vamvakas, I., Manning, D. J., Hogg, P.

“…Purpose: To evaluate nodule detection in an anthropomorphic chest phantom in computed tomography (CT) images reconstructed with adaptive iterative dose…”
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Quantifying the clinical relevance of a laboratory observer performance paradigm by CHAKRABORTY, D. P, HAYGOOD, T. M, RYAN, J, MAROM, E. M, EVANOFF, M, MCENTEE, M. F, BRENNAN, P. C

“…Laboratory observer performance measurements, receiver operating characteristic (ROC) and free-response ROC (FROC) differ from actual clinical interpretations…”
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Breast tomosynthesis and digital mammography: a comparison of diagnostic accuracy by Svahn, T M, Chakraborty, D P, Ikeda, D, Zackrisson, S, Do, Y, Mattsson, S, Andersson, I

“…Our aim was to compare the ability of radiologists to detect breast cancers using one-view breast tomosynthesis (BT) and two-view digital mammography (DM) in…”
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A search model and figure of merit for observer data acquired according to the free-response paradigm by Chakraborty, D P

“…Search is a basic activity that is performed routinely in many different tasks. In the context of medical imaging it involves locating lesions in images under…”
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Renal cyst pseudoenhancement: beam-hardening effects on CT numbers by Maki, D D, Birnbaum, B A, Chakraborty, D P, Jacobs, J E, Carvalho, B M, Herman, G T

“…To determine if simple renal cysts may be accurately characterized with helical computed tomography (CT) during peak levels of renal enhancement. Water-filled…”
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Dose reduction and its influence on diagnostic accuracy and radiation risk in digital mammography : an observer performance study using an anthropomorphic breast phantom by SVAHN, T, HEMDAL, B, RUSCHIN, M, CHAKRABORTY, D. P, ANDERSSON, I, TINGBERG, A, MATTSSON, S

“…This study aimed to investigate the effect of dose reduction on diagnostic accuracy and radiation risk in digital mammography. Simulated masses and…”
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ROC curves predicted by a model of visual search by Chakraborty, D P

“…In imaging tasks where the observer is uncertain whether lesions are present, and where they could be present, the image is searched for lesions. In the…”
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Weathering of Coking Coals during Stacking by Ajay Kumar Gupta, Singh, Rashmi, Sen, Subhadra, Chakraborty, D. P., Ramna, R. V.

“…The coke quality depends on the characteristics of coal blend, pre-carbonization techniques adopted such as stamping, vibro-compaction etc., and coking…”
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Selective Flocculation of Iron Ore Slimes: Results of Successful Pilot Plant Trials at Tata Steel, Noamundi by Tammishetti, Venugopal, Kumar, Dharmendr, Rai, Beena, Pradip, Shukla, Vishal, Patra, Abhay Shankar, Chakraborty, D. P., Kumar, Ashok

“…A significant portion of currently mined iron ores, that is, 15–20% of run of mine ore, typically ends up as slimes—a slurry of fine particles (<45 micron)…”
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Clinical relevance of the ROC and free-response paradigms for comparing imaging system efficacies by Chakraborty, D P

“…Observer performance studies are widely used to assess medical imaging systems. Unlike technical/engineering measurements observer performance include the…”
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A status report on free-response analysis by Chakraborty, D P

“…The purpose of this paper is to summarise recent progress in free-response receiver operating characteristic (FROC) methodology. These are: (1) jackknife…”
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Free-response methodology: alternate analysis and a new observer-performance experiment by Chakraborty, D P, Winter, L H

“…The authors review the recently introduced method for analyzing free-response receiver operating characteristic (FROC) observer-performance experiments. These…”
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Semiempirical model for generating tungsten target x-ray spectra by Tucker, D M, Barnes, G T, Chakraborty, D P

“…A semiempirical model for generating tungsten target x-ray spectra is presented. This model extends earlier work in two significant areas. First, both…”
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Maximum likelihood analysis of free-response receiver operating characteristic (FROC) data by Chakraborty, D P

“…Receiver operating characteristic (ROC) methodology is widely used in evaluating medical imaging modalities. While appropriate in some cases, it has several…”
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Operating characteristics predicted by models for diagnostic tasks involving lesion localization by Chakraborty, D. P., Yoon, Hong-Jun

“…In 1996 Swensson published an observer model that predicted receiver operating characteristic (ROC), localization ROC (LROC), free-response ROC (FROC) and…”
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Mammography test sets: Reading location and prior images do not affect group performance by Soh, B.P, Lee, W.B, McEntee, M.F, Kench, P.L, Reed, W.M, Heard, R, Chakraborty, D.P, Brennan, P.C

“…Aim To examine how the location where reading takes place and the availability of prior images can affect performance in breast test-set reading. Materials and…”
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Plasma levels of lipid peroxides in patients with Parkinson's disease by Sanyal, J, Bandyopadhyay, S K, Banerjee, T K, Mukherjee, S C, Chakraborty, D P, Ray, B C, Rao, V R

“…Oxidative stress is implicated as a major factor for nigral neuronal cell death. Metabolic failure in antioxidant mechanisms could hypothetically facilitate…”
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WE‐E‐304A‐07: Clinically Relevant FROC Analysis by Chakraborty, DP

“…Purpose: While it has been established that the free‐response receiver operating characteristic (FROC) method generally yields more statistical power than the…”
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Human aqueous placental extract as a wound healer by Chakraborty, P D, De, D, Bandyopadhyay, S, Bhattacharyya, D

“…The healing properties of placental extract are well established in various skin conditions, including chronic wounds, pressure ulcers and burns. However, its…”
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