Detection of pulmonary nodules in chest tomosynthesis
... relative to the image detector through a limited angular interval while projection images are acquired. These projection images are then used to reconstruct an arbitrary number of section images, thus reducing the overlapping anatomy. The potential benefits associated with tomosynthesis are low radi ...
... relative to the image detector through a limited angular interval while projection images are acquired. These projection images are then used to reconstruct an arbitrary number of section images, thus reducing the overlapping anatomy. The potential benefits associated with tomosynthesis are low radi ...
PDF hosted at the Radboud Repository of the Radboud University
... clinical facial photographs, plaster casts of the patient’s dentition and occasionally plaster casts of the patient’s face. A revolutionary idea to orient the plaster casts of the dentition and the face in their proper anatomical relation, within the so called “Cubus Cranioforus” was originally desc ...
... clinical facial photographs, plaster casts of the patient’s dentition and occasionally plaster casts of the patient’s face. A revolutionary idea to orient the plaster casts of the dentition and the face in their proper anatomical relation, within the so called “Cubus Cranioforus” was originally desc ...
Mammography and tomosynthesis
... • In mammography, to maximise contrast use the lowest kV possible • Typical compressed breast thickness is 40-50 mm, and rarely greater than 80 mm • Ideal mono-energetic X-ray beam would be 1622 keV • Hence, the use of the full range of the Bremsstrahlung spectrum from a tungsten target with alumini ...
... • In mammography, to maximise contrast use the lowest kV possible • Typical compressed breast thickness is 40-50 mm, and rarely greater than 80 mm • Ideal mono-energetic X-ray beam would be 1622 keV • Hence, the use of the full range of the Bremsstrahlung spectrum from a tungsten target with alumini ...
Lecture 8 - Mammography and tomosynthesis
... • In mammography, to maximise contrast use the lowest kV possible • Typical compressed breast thickness is 40-50 mm, and rarely greater than 80 mm • Ideal mono-energetic X-ray beam would be 1622 keV • Hence, the use of the full range of the Bremsstrahlung spectrum from a tungsten target with alumini ...
... • In mammography, to maximise contrast use the lowest kV possible • Typical compressed breast thickness is 40-50 mm, and rarely greater than 80 mm • Ideal mono-energetic X-ray beam would be 1622 keV • Hence, the use of the full range of the Bremsstrahlung spectrum from a tungsten target with alumini ...
3D dose verification for advanced radiotherapy
... First, the pre-treatment verification part deals with verification methods and procedures that are applied before the first fraction of a treatment is given. These pretreatment verification strategies are useful for detecting errors made during treatment planning, dose calculation, treatment plan tr ...
... First, the pre-treatment verification part deals with verification methods and procedures that are applied before the first fraction of a treatment is given. These pretreatment verification strategies are useful for detecting errors made during treatment planning, dose calculation, treatment plan tr ...
portal dosimetry in radiotherapy
... The goal of radiotherapy is to irradiate tumor tissue to a high dose while sparing the surrounding normal healthy tissue as much as possible to limit the complications of a patient treatment. In general, irradiation is done by using external beam radiotherapy or brachytherapy. ...
... The goal of radiotherapy is to irradiate tumor tissue to a high dose while sparing the surrounding normal healthy tissue as much as possible to limit the complications of a patient treatment. In general, irradiation is done by using external beam radiotherapy or brachytherapy. ...
European Guidelines on DRLs for Paediatric Imaging
... Member States shall ensure the establishment, regular review and use of DRLs for radiodiagnostic examinations, having regard to the recommended European DRLs where available, and when appropriate, for interventional radiology (IR) procedures, and the availability of guidance for this purpose. In 199 ...
... Member States shall ensure the establishment, regular review and use of DRLs for radiodiagnostic examinations, having regard to the recommended European DRLs where available, and when appropriate, for interventional radiology (IR) procedures, and the availability of guidance for this purpose. In 199 ...
Biologically conformal radiation therapy and Monte
... biology distribution within each target volume and aims at achieving geometrically conformal dose distributions. By using the spatially heterogeneous biology distribution provided by one or several biological imaging modalities to guide the IMRT dose prescription, biologically conformal radiation th ...
... biology distribution within each target volume and aims at achieving geometrically conformal dose distributions. By using the spatially heterogeneous biology distribution provided by one or several biological imaging modalities to guide the IMRT dose prescription, biologically conformal radiation th ...
Multi-slice helical CT: Scan and reconstruction
... routine and new clinical applications. It provides good image quality for body imaging applications at a table advancement per rotation of 1 to 2 times the x-ray beam collimation. However, the table advancement per rotation of twice the x-ray beam collimation appears to be the limit of the volume co ...
... routine and new clinical applications. It provides good image quality for body imaging applications at a table advancement per rotation of 1 to 2 times the x-ray beam collimation. However, the table advancement per rotation of twice the x-ray beam collimation appears to be the limit of the volume co ...
1 - Portfoliocommunities
... The cathode is the negative electrode. It is a complex device; usually referred to as the cathode assembly. Its main functions are to: 1. produce a thermionic cloud 2. conduct the high voltage to the gap between cathode and anode 3. focus the electric stream on the anode. Click icons i to show, clic ...
... The cathode is the negative electrode. It is a complex device; usually referred to as the cathode assembly. Its main functions are to: 1. produce a thermionic cloud 2. conduct the high voltage to the gap between cathode and anode 3. focus the electric stream on the anode. Click icons i to show, clic ...
cone beam ct for dental and maxillofacial radiology
... The core guidance in preparing the document has been from the two relevant Council Directives of the European Union: Directive 96/29/Euratom, of 13 May 1996, laying down the basic safety standards for the protection of the health of workers and the general public against the dangers arising from ion ...
... The core guidance in preparing the document has been from the two relevant Council Directives of the European Union: Directive 96/29/Euratom, of 13 May 1996, laying down the basic safety standards for the protection of the health of workers and the general public against the dangers arising from ion ...
Imag - University of Cincinnati College of Medicine
... Judy Squires, MD Judy Squires attended the University of Texas Medical College at Galveston and completed her transitional year in pediatrics at Cincinnati Children’s Hospital Medical Center. Judy has been working on research projects in musculoskeletal imaging and pediatric radiology and presented ...
... Judy Squires, MD Judy Squires attended the University of Texas Medical College at Galveston and completed her transitional year in pediatrics at Cincinnati Children’s Hospital Medical Center. Judy has been working on research projects in musculoskeletal imaging and pediatric radiology and presented ...
Scatter Correction Method for X-Ray CT Using Primary Modulation
... scatter-to-primary ratios (SPRs), which result in severe artifacts in reconstructed computed tomography (CT) images. A scatter correction algorithm is introduced that provides effective scatter correction but does not require additional patient exposure. The key hypothesis of the algorithm is that t ...
... scatter-to-primary ratios (SPRs), which result in severe artifacts in reconstructed computed tomography (CT) images. A scatter correction algorithm is introduced that provides effective scatter correction but does not require additional patient exposure. The key hypothesis of the algorithm is that t ...
Optimisation of radiation dose and image quality for AP pelvis
... 5.3. Objectives of the main focus of PhD thesis (Optimisation) ............................................. 133 Chapter 6: Materials and method ................................................................................................ 134 6.1. Overview ........................................ ...
... 5.3. Objectives of the main focus of PhD thesis (Optimisation) ............................................. 133 Chapter 6: Materials and method ................................................................................................ 134 6.1. Overview ........................................ ...
Cone Beam Ct for Dental and Maxillofacial Radiology
... the Computed Tomography (CT), which is today a well-established diagnostic tool in many areas of medicine. New applications of CT, sometimes in areas where they were hardly expected, are still coming into existence today. One example of such innovative use of CT is the development of the Cone Beam C ...
... the Computed Tomography (CT), which is today a well-established diagnostic tool in many areas of medicine. New applications of CT, sometimes in areas where they were hardly expected, are still coming into existence today. One example of such innovative use of CT is the development of the Cone Beam C ...
Dosimetry in diagnostic radiology : an
... International standardization in dosimetry is essential for the successful exploitation of radiation technology. Soon after it was founded, the IAEA initiated a programme on the dosimetry of ionizing radiation, helping Member States develop the calibration and measurement capabilities necessary for ...
... International standardization in dosimetry is essential for the successful exploitation of radiation technology. Soon after it was founded, the IAEA initiated a programme on the dosimetry of ionizing radiation, helping Member States develop the calibration and measurement capabilities necessary for ...
PDF - IAEA Publications
... that a safety conscious department is also likely to be an accuracy conscious department. Quality assurance and accuracy are closely related. This publication is not intended as a quality assurance guide; rather, the focus is on generating an awareness of accuracy and uncertainty issues. Accuracy in ...
... that a safety conscious department is also likely to be an accuracy conscious department. Quality assurance and accuracy are closely related. This publication is not intended as a quality assurance guide; rather, the focus is on generating an awareness of accuracy and uncertainty issues. Accuracy in ...
MICHIGAN DEPARTMENT OF PUBLIC HEALTH RADIATION
... (a) For capacitor energy storage equipment when operated at is leakage technique factors. (b) For field emission equipment rated for pulsed operation when operated at its leakage technique factors. (c) For all other equipment when operated at 70 kVp and 10 milliamps or its calculated equivalent. (4) ...
... (a) For capacitor energy storage equipment when operated at is leakage technique factors. (b) For field emission equipment rated for pulsed operation when operated at its leakage technique factors. (c) For all other equipment when operated at 70 kVp and 10 milliamps or its calculated equivalent. (4) ...
medical physics international
... downloaded hundreds of times, what shows that the construction and coverage of the Journal have been well chosen by the Editorial team. The Journal will continue to support these sections and invites authors to consider submitting papers for the 3rd MPI issue (planned for March 2014, with submission ...
... downloaded hundreds of times, what shows that the construction and coverage of the Journal have been well chosen by the Editorial team. The Journal will continue to support these sections and invites authors to consider submitting papers for the 3rd MPI issue (planned for March 2014, with submission ...
optimisation and establishment of diagnostic
... for allowing my work to take the time that I should have dedicated to them. To Laila, my wife, an outstanding woman. I can’t find enough words in the dictionary to describe what you represent in my life. Nothing would have been possible without you. This thesis is y ...
... for allowing my work to take the time that I should have dedicated to them. To Laila, my wife, an outstanding woman. I can’t find enough words in the dictionary to describe what you represent in my life. Nothing would have been possible without you. This thesis is y ...
Annotations Part II Vertebral Fracture Initiative Slide 1 Slide 3
... • This particularly applies to lateral views in which the divergent X-ray beam, poor positioning or scoliosis may result in biconcave endplates which must not erroneously be interpreted as vertebral fractures. • In the breath-hold technique in the thoracic spine, rib margins may obscure vertebral en ...
... • This particularly applies to lateral views in which the divergent X-ray beam, poor positioning or scoliosis may result in biconcave endplates which must not erroneously be interpreted as vertebral fractures. • In the breath-hold technique in the thoracic spine, rib margins may obscure vertebral en ...
Evaluation of image quality and patient radiation dose in digital
... Only a few years ago, flat-panel detectors with integrated read-out mechanisms became commercially available for implementation in digital radiography applications. The latter detectors provide an instant image display and use a thin-film transistor array for signal transport. Conversion of x-rays i ...
... Only a few years ago, flat-panel detectors with integrated read-out mechanisms became commercially available for implementation in digital radiography applications. The latter detectors provide an instant image display and use a thin-film transistor array for signal transport. Conversion of x-rays i ...
cone beam ct: non-dental applications
... and therefore CBCT’s with a trolley designed to scan patients in the supine position can’t be used for this application. It also became gradually possible to superimpose 3D laser acquired data of the soft tissues of the face on top of the bony skull image generated by the CBCT. This was at first onl ...
... and therefore CBCT’s with a trolley designed to scan patients in the supine position can’t be used for this application. It also became gradually possible to superimpose 3D laser acquired data of the soft tissues of the face on top of the bony skull image generated by the CBCT. This was at first onl ...
PAGE 6 - The Scanner Magazine
... software solutions. The company’s technology gives radiologists, cardiologists, oncologists and other medical specialists time-saving productivity and communications tools that can be accessed throughout the enterprise and via the Web for easy use in the day-to-day practice of medicine. Vital Images ...
... software solutions. The company’s technology gives radiologists, cardiologists, oncologists and other medical specialists time-saving productivity and communications tools that can be accessed throughout the enterprise and via the Web for easy use in the day-to-day practice of medicine. Vital Images ...
Backscatter X-ray
Backscatter X-ray is an advanced X-ray imaging technology. Traditional X-ray machines detect hard and soft materials by the variation in transmission through the target. In contrast, backscatter X-ray detects the radiation that reflects from the target. It has potential applications where less-destructive examination is required, and can be used if only one side of the target is available for examination.The technology is one of two types of whole body imaging technologies that have been used to perform full-body scans of airline passengers to detect hidden weapons, tools, liquids, narcotics, currency, and other contraband. A competing technology is millimeter wave scanner. An airport security machine of this type is also referred to as ""body scanner"", ""whole body imager (WBI)"", ""security scanner"", and ""naked scanner"".