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Showing 1 to 12 of 9546 entries
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Signal-to-noise efficiency in magnetic resonance imaging.

Medical physics

Parker DL, Gullberg GT.
PMID: 2333051
Med Phys. 1990 Mar-Apr;17(2):250-7. doi: 10.1118/1.596503.

The dependence of signal-to-noise ratio (SNR) on the analog filter, the sampling rate and the number and dimensions of voxels is derived for magnetic resonance imaging (MRI). It is shown that the object signal-to-noise ratio scales directly with the...

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Parker DL, Gullberg GT. Signal-to-noise efficiency in magnetic resonance imaging. Med Phys. 1990;17(2):250-7doi: 10.1118/1.596503.
Parker, D. L., & Gullberg, G. T. (1990). Signal-to-noise efficiency in magnetic resonance imaging. Medical physics, 17(2), 250-7. https://doi.org/10.1118/1.596503
Parker, D L, and Gullberg, G T. "Signal-to-noise efficiency in magnetic resonance imaging." Medical physics vol. 17,2 (1990): 250-7. doi: https://doi.org/10.1118/1.596503
Parker DL, Gullberg GT. Signal-to-noise efficiency in magnetic resonance imaging. Med Phys. 1990 Mar-Apr;17(2):250-7. doi: 10.1118/1.596503. PMID: 2333051.
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Considerations concerning the neuro-endocrine characterization of sportsmen.

The Journal of sports medicine and physical fitness

Ulmeanu FC.
PMID: 5497882
J Sports Med Phys Fitness. 1970 Sep;10(3):133-7.

No abstract available.

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Ulmeanu FC. Considerations concerning the neuro-endocrine characterization of sportsmen. J Sports Med Phys Fitness. 1970;10(3):133-7
Ulmeanu, F. C. (1970). Considerations concerning the neuro-endocrine characterization of sportsmen. The Journal of sports medicine and physical fitness, 10(3), 133-7.
Ulmeanu, F C. "Considerations concerning the neuro-endocrine characterization of sportsmen." The Journal of sports medicine and physical fitness vol. 10,3 (1970): 133-7.
Ulmeanu FC. Considerations concerning the neuro-endocrine characterization of sportsmen. J Sports Med Phys Fitness. 1970 Sep;10(3):133-7. PMID: 5497882.
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Magnetically induced surface charges on samples in magnetic resonance imaging radio-frequency coils: effect on electric fields, sample losses, and coil resonance.

Medical physics

Harpen MD.
PMID: 2385193
Med Phys. 1990 May-Jun;17(3):362-8. doi: 10.1118/1.596516.

We present a solution to Maxwell's equations which describe the inductive interaction between an irregularly shaped sample in a magnetic resonance imaging rf coil. It is demonstrated that the inductive interaction between the coil and sample can induce charge...

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Harpen MD. Magnetically induced surface charges on samples in magnetic resonance imaging radio-frequency coils: effect on electric fields, sample losses, and coil resonance. Med Phys. 1990;17(3):362-8doi: 10.1118/1.596516.
Harpen, M. D. (1990). Magnetically induced surface charges on samples in magnetic resonance imaging radio-frequency coils: effect on electric fields, sample losses, and coil resonance. Medical physics, 17(3), 362-8. https://doi.org/10.1118/1.596516
Harpen, M D. "Magnetically induced surface charges on samples in magnetic resonance imaging radio-frequency coils: effect on electric fields, sample losses, and coil resonance." Medical physics vol. 17,3 (1990): 362-8. doi: https://doi.org/10.1118/1.596516
Harpen MD. Magnetically induced surface charges on samples in magnetic resonance imaging radio-frequency coils: effect on electric fields, sample losses, and coil resonance. Med Phys. 1990 May-Jun;17(3):362-8. doi: 10.1118/1.596516. PMID: 2385193.
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Toward a unified view of radiological imaging systems. Part II: Noisy images.

Medical physics

Wagner RF.
PMID: 882063
Med Phys. 1977 Jul-Aug;4(4):279-96. doi: 10.1118/1.594362.

"The imaging process is fundamentally a sampling process." This philosophy of Otto Schade, utilizing the concepts of sample number and sampling aperture, is applied to a systems analysis of radiographic imaging including some aspects of vision. It leads to...

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Wagner RF. Toward a unified view of radiological imaging systems. Part II: Noisy images. Med Phys. 1977;4(4):279-96doi: 10.1118/1.594362.
Wagner, R. F. (1977). Toward a unified view of radiological imaging systems. Part II: Noisy images. Medical physics, 4(4), 279-96. https://doi.org/10.1118/1.594362
Wagner, R F. "Toward a unified view of radiological imaging systems. Part II: Noisy images." Medical physics vol. 4,4 (1977): 279-96. doi: https://doi.org/10.1118/1.594362
Wagner RF. Toward a unified view of radiological imaging systems. Part II: Noisy images. Med Phys. 1977 Jul-Aug;4(4):279-96. doi: 10.1118/1.594362. PMID: 882063.
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Dosimetric comparison between IMRT delivery modes: Step-and-shoot, sliding window, and volumetric modulated arc therapy - for whole pelvis radiation therapy of intermediate-to-high risk prostate adenocarcinoma.

Journal of medical physics

Herman Tde L, Schnell E, Young J, Hildebrand K, Algan O, Syzek E, Herman T, Ahmad S.
PMID: 24672150
J Med Phys. 2013 Oct;38(4):165-72. doi: 10.4103/0971-6203.121193.

THIS STUDY WAS PERFORMED TO EVALUATE DOSIMETRIC DIFFERENCES BETWEEN CURRENT INTENSITY MODULATED RADIATION THERAPY (IMRT) DELIVERY MODES: Step-and-shoot (SS), sliding window (SW), and volumetric modulated arc therapy (VMAT). Plans for 15 prostate cancer patients with 10 MV photon beams...

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Herman Tde L, Schnell E, Young J, et al. Dosimetric comparison between IMRT delivery modes: Step-and-shoot, sliding window, and volumetric modulated arc therapy - for whole pelvis radiation therapy of intermediate-to-high risk prostate adenocarcinoma. J Med Phys. 2013;38(4):165-72doi: 10.4103/0971-6203.121193.
Herman, T. d. e. . L., Schnell, E., Young, J., Hildebrand, K., Algan, O., Syzek, E., Herman, T., & Ahmad, S. (2013). Dosimetric comparison between IMRT delivery modes: Step-and-shoot, sliding window, and volumetric modulated arc therapy - for whole pelvis radiation therapy of intermediate-to-high risk prostate adenocarcinoma. Journal of medical physics, 38(4), 165-72. https://doi.org/10.4103/0971-6203.121193
Herman, Tania De La Fuente, et al. "Dosimetric comparison between IMRT delivery modes: Step-and-shoot, sliding window, and volumetric modulated arc therapy - for whole pelvis radiation therapy of intermediate-to-high risk prostate adenocarcinoma." Journal of medical physics vol. 38,4 (2013): 165-72. doi: https://doi.org/10.4103/0971-6203.121193
Herman Tde L, Schnell E, Young J, Hildebrand K, Algan O, Syzek E, Herman T, Ahmad S. Dosimetric comparison between IMRT delivery modes: Step-and-shoot, sliding window, and volumetric modulated arc therapy - for whole pelvis radiation therapy of intermediate-to-high risk prostate adenocarcinoma. J Med Phys. 2013 Oct;38(4):165-72. doi: 10.4103/0971-6203.121193. PMID: 24672150; PMCID: PMC3958995.
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Radiation dose estimation of patients undergoing lumbar spine radiography.

Journal of medical physics

Gyekye PK, Simon A, Geoffrey ER, Johnson Y, Stephen I, Engmann CK, Samuel WG.
PMID: 24672153
J Med Phys. 2013 Oct;38(4):185-8. doi: 10.4103/0971-6203.121196.

Radiation dose to organs of 100 adult patients undergoing lumbar spine (LS) radiography at a University Hospital have been assessed. Free in air kerma measurement using an ionization chamber was used for the patient dosimetry. Organ and effective dose...

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Gyekye PK, Simon A, Geoffrey ER, et al. Radiation dose estimation of patients undergoing lumbar spine radiography. J Med Phys. 2013;38(4):185-8doi: 10.4103/0971-6203.121196.
Gyekye, P. K., Simon, A., Geoffrey, E. R., Johnson, Y., Stephen, I., Engmann, C. K., & Samuel, W. G. (2013). Radiation dose estimation of patients undergoing lumbar spine radiography. Journal of medical physics, 38(4), 185-8. https://doi.org/10.4103/0971-6203.121196
Gyekye, Prince Kwabena, et al. "Radiation dose estimation of patients undergoing lumbar spine radiography." Journal of medical physics vol. 38,4 (2013): 185-8. doi: https://doi.org/10.4103/0971-6203.121196
Gyekye PK, Simon A, Geoffrey ER, Johnson Y, Stephen I, Engmann CK, Samuel WG. Radiation dose estimation of patients undergoing lumbar spine radiography. J Med Phys. 2013 Oct;38(4):185-8. doi: 10.4103/0971-6203.121196. PMID: 24672153; PMCID: PMC3958998.
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Poster - Thur Eve - 11: A realistic respiratory trace generator and its application to respiratory management techniques.

Medical physics

Quirk S, Becker N, Smith WL.
PMID: 28516527
Med Phys. 2012 Jul;39(7):4626. doi: 10.1118/1.4740119.

Respiratory motion complicates radiotherapy treatment of thoracic and abdominal tumours. Simplified respiratory motions such as sinusoidal and single patient traces are often used to determine the impact of motion on respiratory management techniques in radiotherapy. Such simplifications only accurately...

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Quirk S, Becker N, Smith WL. Poster - Thur Eve - 11: A realistic respiratory trace generator and its application to respiratory management techniques. Med Phys. 2012;39(7):4626doi: 10.1118/1.4740119.
Quirk, S., Becker, N., & Smith, W. L. (2012). Poster - Thur Eve - 11: A realistic respiratory trace generator and its application to respiratory management techniques. Medical physics, 39(7), 4626. https://doi.org/10.1118/1.4740119
Quirk, S, et al. "Poster - Thur Eve - 11: A realistic respiratory trace generator and its application to respiratory management techniques." Medical physics vol. 39,7 (2012): 4626. doi: https://doi.org/10.1118/1.4740119
Quirk S, Becker N, Smith WL. Poster - Thur Eve - 11: A realistic respiratory trace generator and its application to respiratory management techniques. Med Phys. 2012 Jul;39(7):4626. doi: 10.1118/1.4740119. PMID: 28516527.
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Poster - Thur Eve - 03: LDR to HDR: RADPOS applications in brachytherapy.

Medical physics

Cherpak AJ, Cygler JE, Kertzscher G, E C, Perry G.
PMID: 28516533
Med Phys. 2012 Jul;39(7):4624. doi: 10.1118/1.4740110.

The RADPOS in vivo dosimetry system combines an electromagnetic positioning sensor and either one or five MOSFET dosimeters. The feasibility of using the system for quality control has been explored for a range of radiotherapy treatment techniques including most...

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Cherpak AJ, Cygler JE, Kertzscher G, et al. Poster - Thur Eve - 03: LDR to HDR: RADPOS applications in brachytherapy. Med Phys. 2012;39(7):4624doi: 10.1118/1.4740110.
Cherpak, A. J., Cygler, J. E., Kertzscher, G., E, C., & Perry, G. (2012). Poster - Thur Eve - 03: LDR to HDR: RADPOS applications in brachytherapy. Medical physics, 39(7), 4624. https://doi.org/10.1118/1.4740110
Cherpak, A J, et al. "Poster - Thur Eve - 03: LDR to HDR: RADPOS applications in brachytherapy." Medical physics vol. 39,7 (2012): 4624. doi: https://doi.org/10.1118/1.4740110
Cherpak AJ, Cygler JE, Kertzscher G, E C, Perry G. Poster - Thur Eve - 03: LDR to HDR: RADPOS applications in brachytherapy. Med Phys. 2012 Jul;39(7):4624. doi: 10.1118/1.4740110. PMID: 28516533.
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Poster - Thur Eve - 17: Control point analysis comparison of three different treatment planning and delivery complexity levels using a commercial three dimensional diode array.

Medical physics

Abdellatif A, Kempe J, Johnson C, Gaede S.
PMID: 28516536
Med Phys. 2012 Jul;39(7):4627. doi: 10.1118/1.4740125.

PURPOSE: To use Control Point Analysis (Sun Nuclear Corporation, Melbourne, Florida, USA) to analyze and compare delivered VMAT plans for three different treatment planning complexity levels.METHODS: Nineteen patients were chosen and fully anonymized for the purpose of this study....

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Abdellatif A, Kempe J, Johnson C, et al. Poster - Thur Eve - 17: Control point analysis comparison of three different treatment planning and delivery complexity levels using a commercial three dimensional diode array. Med Phys. 2012;39(7):4627doi: 10.1118/1.4740125.
Abdellatif, A., Kempe, J., Johnson, C., & Gaede, S. (2012). Poster - Thur Eve - 17: Control point analysis comparison of three different treatment planning and delivery complexity levels using a commercial three dimensional diode array. Medical physics, 39(7), 4627. https://doi.org/10.1118/1.4740125
Abdellatif, A, et al. "Poster - Thur Eve - 17: Control point analysis comparison of three different treatment planning and delivery complexity levels using a commercial three dimensional diode array." Medical physics vol. 39,7 (2012): 4627. doi: https://doi.org/10.1118/1.4740125
Abdellatif A, Kempe J, Johnson C, Gaede S. Poster - Thur Eve - 17: Control point analysis comparison of three different treatment planning and delivery complexity levels using a commercial three dimensional diode array. Med Phys. 2012 Jul;39(7):4627. doi: 10.1118/1.4740125. PMID: 28516536.
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Sci-Thur AM: Planning - 03: Extensive patient specific QA for field junction regions for craniospinal irradiation with Jagged-Junction IMRT approach without beam edge matching for field junctions.

Medical physics

Cao F, Harrop S.
PMID: 28516541
Med Phys. 2012 Jul;39(7):4619. doi: 10.1118/1.4740088.

PURPOSE: Jagged-Junction IMRT was developed for craniospinal irradiation. An extensive QA was performed for the field junction regions.METHODS AND MATERIALS: The Jagged-Junction IMRT plan employed three field sets, each with unique isocentres (Iso1,2,3). Fields from adjacent sets were overlapped...

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Cao F, Harrop S. Sci-Thur AM: Planning - 03: Extensive patient specific QA for field junction regions for craniospinal irradiation with Jagged-Junction IMRT approach without beam edge matching for field junctions. Med Phys. 2012;39(7):4619doi: 10.1118/1.4740088.
Cao, F., & Harrop, S. (2012). Sci-Thur AM: Planning - 03: Extensive patient specific QA for field junction regions for craniospinal irradiation with Jagged-Junction IMRT approach without beam edge matching for field junctions. Medical physics, 39(7), 4619. https://doi.org/10.1118/1.4740088
Cao, F, and Harrop, S. "Sci-Thur AM: Planning - 03: Extensive patient specific QA for field junction regions for craniospinal irradiation with Jagged-Junction IMRT approach without beam edge matching for field junctions." Medical physics vol. 39,7 (2012): 4619. doi: https://doi.org/10.1118/1.4740088
Cao F, Harrop S. Sci-Thur AM: Planning - 03: Extensive patient specific QA for field junction regions for craniospinal irradiation with Jagged-Junction IMRT approach without beam edge matching for field junctions. Med Phys. 2012 Jul;39(7):4619. doi: 10.1118/1.4740088. PMID: 28516541.
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Sci-Thur PM: YIS - 02: A validated approach for clinical linacs to accurately determine the photon spectra and the incident electron energy.

Medical physics

Ali E, McEwen M, Rogers D.
PMID: 28516542
Med Phys. 2012 Jul;39(7):4622. doi: 10.1118/1.4740099.

In clinical photon beams, independent determination of the photon spectra and the incident electron energy is useful for beam (re)commissioning and for detector response modelling. In this study, an approach is developed for that purpose, and validated on a...

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Ali E, McEwen M, Rogers D. Sci-Thur PM: YIS - 02: A validated approach for clinical linacs to accurately determine the photon spectra and the incident electron energy. Med Phys. 2012;39(7):4622doi: 10.1118/1.4740099.
Ali, E., McEwen, M., & Rogers, D. (2012). Sci-Thur PM: YIS - 02: A validated approach for clinical linacs to accurately determine the photon spectra and the incident electron energy. Medical physics, 39(7), 4622. https://doi.org/10.1118/1.4740099
Ali, E, et al. "Sci-Thur PM: YIS - 02: A validated approach for clinical linacs to accurately determine the photon spectra and the incident electron energy." Medical physics vol. 39,7 (2012): 4622. doi: https://doi.org/10.1118/1.4740099
Ali E, McEwen M, Rogers D. Sci-Thur PM: YIS - 02: A validated approach for clinical linacs to accurately determine the photon spectra and the incident electron energy. Med Phys. 2012 Jul;39(7):4622. doi: 10.1118/1.4740099. PMID: 28516542.
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Poster - Thur Eve - 12: Dosimetric manifestation of harmonic mode imaging for seed implant brachytherapy.

Medical physics

Sandhu G, Angyalfi S, Dunscombe P, Khan R.
PMID: 28516544
Med Phys. 2012 Jul;39(7):4626. doi: 10.1118/1.4740120.

PURPOSE: To demonstrate the dosimetric effects of observer variability in defining the prostate and critical organs, using Tissue Harmonic (H) ultrasound imaging mode for permanent seed implant brachytherapy.METHODS: Images were acquired using a B -K medical 8848 probe with...

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Sandhu G, Angyalfi S, Dunscombe P, et al. Poster - Thur Eve - 12: Dosimetric manifestation of harmonic mode imaging for seed implant brachytherapy. Med Phys. 2012;39(7):4626doi: 10.1118/1.4740120.
Sandhu, G., Angyalfi, S., Dunscombe, P., & Khan, R. (2012). Poster - Thur Eve - 12: Dosimetric manifestation of harmonic mode imaging for seed implant brachytherapy. Medical physics, 39(7), 4626. https://doi.org/10.1118/1.4740120
Sandhu, G, et al. "Poster - Thur Eve - 12: Dosimetric manifestation of harmonic mode imaging for seed implant brachytherapy." Medical physics vol. 39,7 (2012): 4626. doi: https://doi.org/10.1118/1.4740120
Sandhu G, Angyalfi S, Dunscombe P, Khan R. Poster - Thur Eve - 12: Dosimetric manifestation of harmonic mode imaging for seed implant brachytherapy. Med Phys. 2012 Jul;39(7):4626. doi: 10.1118/1.4740120. PMID: 28516544.
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Showing 1 to 12 of 9546 entries