Search Results - "Leybovich, L"

“I Had a Document in the Form of a Pass in German…”: An Incident from the Life of Soviet Prisoners of War in 1941 by Oleg L. Leybovich, Yulia S. Kolchanova

“…On the basis of published and archival ego-documents, the article reconstructs the stories of military medical assistant Timofei M. Malygin and junior…”
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SU‐FF‐T‐77: IMRT of Superficial Tumors by Sethi, A, Leybovich, L, King, S, Rusu, I, Xu, M

“…Purpose: Due to inadequate beam modeling in the buildup region, large differences exist between planned and delivered IMRT doses for superficial targets. Our…”
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Elimination of field size dependence of enhanced dynamic wedge factors by Sethi, A, Leybovich, L B, Dogan, N, Glasgow, G P

“…Enhanced dynamic wedge factors (EDWF) are characterized by a strong field size dependence. In contrast to physical wedge factors, the EDWF decrease as the…”
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Matching tomographic IMRT fields with static photon fields by Sethi, A., Leybovich, L., Dogan, N., Emami, B.

“…The matching of abutting radiation fields presents a challenging problem in radiation therapy. Due to sharp penumbra of linear accelerator beams, small (1–2…”
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A modified technique for RF-LCF interstitial hyperthermia by Leybovich, L B, Dogan, N, Sethi, A

“…To provide uniform heating of a tumour, it is necessary to establish sufficient volumetric control of power deposition. The interstitial Radio-Frequency…”
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"By Taste and the Spirit of the Times …" The Professor as Slave by Kabatskov, A. N, Leybovich, O. L

“…The authors examine how the social status of the university professor has evolved in Russia in recent centuries in light of the historical concepts about the…”
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A modified method of planning and delivery for dynamic multileaf collimator intensity-modulated radiation therapy by Dogan, N, Leybovich, L B, Sethi, A, Krasin, M, Emami, B

“…To develop a modified planning and delivery technique that reduces dose nonuniformity for tomographic delivery of intensity-modulated radiation therapy (IMRT)…”
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Mix-mode technique of feeding arrays of dipole microwave antennae by Leybovich, L B, Fan, C J, Hopkins, B J

“…A 4-element array of coherently driven dipole microwave antennae produces a hot spot in the central region of the implanted volume and cold spots in the…”
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Dosimetry of very-small (5-10 mm) and small (12.5-40 mm) diameter cones and dose verification for radiosurgery with 6-MV X-ray beams by Fan, C J, Devanna, W G, Leybovich, L B, Kurup, R G, Hopkins, B J, Melian, E, Anderson, D, Glasgow, G P

“…The dosimetry and dose verification for 6-MV X-rays were performed for radiosurgery cones of 5- to 40-mm diameter. The total scatter factors decrease slowly…”
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Evaluation of microwave interstitial antennas in the phantom with varying cross-section by Leybovich, L B, Kurup, R G

“…Dipole-regular microwave interstitial antennas are characterized with a "dead" space located along the tip segment of the antenna. The length of the "dead"…”
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Thermoradiotherapy of malignant melanoma by Emami, B, Perez, C A, Konefal, J, Pilepich, M V, Leybovich, L, Straube, W, VonGerichten, D, Hederman, M A

“…From 1978 through February 1986, 49 measurable lesions in 18 patients with recurrent primary or metastatic malignant melanomas were treated with a combination…”
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SAR patterns of external 915 MHz microwave applicators by Straube, W L, Myerson, R J, Emami, B, Leybovich, L B

“…Analysis of the results from recent clinical trials has shown that tumour size is a significant prognostic factor in eventual tumour control in patients…”
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Theoretical limits of SAR distributions of a four-element square array of dipole-type antennas by Fan, C J, Leybovich, L B, Devanna, W G, Kurup, R G

“…Four-element dipole microwave antenna arrays with square insertion patterns are commonly used clinically for interstitial hyperthermia. One major disadvantage…”
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Improvement of tomographic intensity modulated radiotherapy dose distributions using periodic shifting of arc abutment regions by Leybovich, Leonid B., Dogan, Nesrin, Sethi, Anil, Krasin, Matthew J., Emami, Bahman

“…Based on the study of treatment arc positioning versus target length, a method that allowed periodic shift of arc abutment regions through the course of…”
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Characteristics of improved microwave interstitial antennas for local hyperthermia by Sathiaseelan, V, Leybovich, L, Emami, B, Stauffer, P, Straube, W

“…The heating potentials of two newly-developed microwave interstitial antennas are reported in this paper. The longitudinal (parallel to the antenna) and…”
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Phantom evaluation of heating of superficial tissues located above interstitial microwave antennas by Leybovich, L B, Devanna, W G, Gray, A C, Kurup, R G, Fan, C J

“…A technique that improves heating of superficial tissues above an implant of microwave interstitial antennas is presented. Adequate heating of tumor margins is…”
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Combined hyperthermia and irradiation in the treatment of superficial tumors: results of a prospective randomized trial of hyperthermia fractionation (1/wk vs 2/wk) by Emami, B, Myerson, R J, Cardenes, H, Paris, K G, Perez, C A, Straube, W, Leybovich, L, Mildenberger, M, Kuske, R R, Devineni, V R

“…From December 1984 to December 1989, 240 superficially located recurrent/metastatic malignant lesions (173 patients) were enrolled in a prospective randomized…”
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Dual-antenna applicator for hyperthermia of tumours at intermediate depth by Leybovich, L B, Emami, B, Myerson, R J, Straube, W L, Sathiaseelan, V

“…A dual-antenna applicator with 21 x 26 cm2 aperture, that is fully loaded and operates at 74 MHz, was developed at the Mallinckrodt Institute of Radiology. By…”
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Evaluation of the Sigma 60 applicator for regional hyperthermia in terms of scattering parameters by Leybovich, L B, Myerson, R J, Emami, B, Straube, W L

“…Scattering parameters adequately describe the interference between ports of a multiportal electromagnetic device when the device dimensions are comparable with…”
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Equilibrium temperature distributions in uniform phantoms for superficial microwave applicators: implications for temperature-based standards of applicator adequacy by Myerson, R J, Emami, B N, Perez, C A, Straube, W, Leybovich, L, Von Gerichten, D

“…Equilibrium temperature distributions are computed using measured SAR distributions for five different superficial microwave (915 MHz) applicators. We assume a…”
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