Coronary CT angiography: Diagnostic value and clinical challenges
... reduction capabilities, including a dynamic helical collimator and an adaptive axial collimator to reduce z-over scanning[34,35]. Second generation of 128-slice CT was introduced with dual-source which uses two x-ray tubes with opposing 64 detector arrays mounted 90° from each other. The main advant ...
... reduction capabilities, including a dynamic helical collimator and an adaptive axial collimator to reduce z-over scanning[34,35]. Second generation of 128-slice CT was introduced with dual-source which uses two x-ray tubes with opposing 64 detector arrays mounted 90° from each other. The main advant ...
Scatter Compensation Techniques in PET
... PET imaging. It is well established that scatter correction improves the contrast compared with no correction but does so at the expense of decreased signal-to-noise ratio when subtraction-based scatter-correction techniques are used [26]. Scatter compensation improves the contrast between the diffe ...
... PET imaging. It is well established that scatter correction improves the contrast compared with no correction but does so at the expense of decreased signal-to-noise ratio when subtraction-based scatter-correction techniques are used [26]. Scatter compensation improves the contrast between the diffe ...
Rib Fractures - American College of Radiology
... Discussion of Imaging Modalities by Variant Suspected Rib Fracture after Minor Blunt Trauma (Injury Confined to Ribs) This variant refers to rib fractures resulting from minor blunt trauma. For severe cases of trauma please refer to the ACR Appropriateness Criteria® on “Blunt Chest Trauma.” In comb ...
... Discussion of Imaging Modalities by Variant Suspected Rib Fracture after Minor Blunt Trauma (Injury Confined to Ribs) This variant refers to rib fractures resulting from minor blunt trauma. For severe cases of trauma please refer to the ACR Appropriateness Criteria® on “Blunt Chest Trauma.” In comb ...
Design and Preliminary Accuracy Studies of an MRI
... the manipulator prior to a procedure. The presence of a strong magnetic field inside an MRI scanner precludes the use of any ferromagnetic materials. Nonmagnetic metals can create imaging artifact, caused by a disturbance of the magnetic field due to difference in susceptibility of the metal and surrou ...
... the manipulator prior to a procedure. The presence of a strong magnetic field inside an MRI scanner precludes the use of any ferromagnetic materials. Nonmagnetic metals can create imaging artifact, caused by a disturbance of the magnetic field due to difference in susceptibility of the metal and surrou ...
Ms - F6 Publishing Home
... http://dx.doi.org/10.3748/wjg.v21.i2.517 Articles published by this Open-Access journal are distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use i ...
... http://dx.doi.org/10.3748/wjg.v21.i2.517 Articles published by this Open-Access journal are distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use i ...
evaluation of elegp collimator with resolution recovery for spect/ct
... According to the manufacturer, GE Healthcare, the spatial resolution can be compensated for by using the modern reconstruction algorithm Resolution Recovery (RR) [3]. This has been shown for Octreoscan® with 111In for liver tumours, which indicates that the ELEGP collimator could be a better choice ...
... According to the manufacturer, GE Healthcare, the spatial resolution can be compensated for by using the modern reconstruction algorithm Resolution Recovery (RR) [3]. This has been shown for Octreoscan® with 111In for liver tumours, which indicates that the ELEGP collimator could be a better choice ...
Safety Code 35: Radiation Protection in Radiology
... X-ray exposures remain unchanged. X-rays have the potential for damaging healthy cells and tissues, and therefore all medical procedures employing X-ray equipment must be carefully managed. In all facilities and for all equipment types, procedures must be in place in order to ensure that exposures t ...
... X-ray exposures remain unchanged. X-rays have the potential for damaging healthy cells and tissues, and therefore all medical procedures employing X-ray equipment must be carefully managed. In all facilities and for all equipment types, procedures must be in place in order to ensure that exposures t ...
Safety Code 35: Radiation Protection in Radiology
... X-ray exposures remain unchanged. X-rays have the potential for damaging healthy cells and tissues, and therefore all medical procedures employing X-ray equipment must be carefully managed. In all facilities and for all equipment types, procedures must be in place in order to ensure that exposures t ...
... X-ray exposures remain unchanged. X-rays have the potential for damaging healthy cells and tissues, and therefore all medical procedures employing X-ray equipment must be carefully managed. In all facilities and for all equipment types, procedures must be in place in order to ensure that exposures t ...
Technical advancements and protocol optimization of diffusion
... transplant as significant lower ADC was found in patients with at least one parenchymal disorder ...
... transplant as significant lower ADC was found in patients with at least one parenchymal disorder ...
PDF - IAEA Publications
... FOREWORD Radiotherapy is a key treatment modality for cancer patients. In recent years, there have been major developments in external beam radiotherapy, which has developed from simple two dimensional techniques to three dimensional image based conformal radiotherapy, intensity modulated radiother ...
... FOREWORD Radiotherapy is a key treatment modality for cancer patients. In recent years, there have been major developments in external beam radiotherapy, which has developed from simple two dimensional techniques to three dimensional image based conformal radiotherapy, intensity modulated radiother ...
Update and review on the basics of brachial plexus imaging
... brachial plexus dysfunction include traumatic injuries, which resonance neurography (MRN), and sonography. The indications, affect 1.2% of adults and 0.1% of the pediatric population [1-2], advantages, and disadvantages of each modality are reviewed. and obstetrical injuries, which occur with an inc ...
... brachial plexus dysfunction include traumatic injuries, which resonance neurography (MRN), and sonography. The indications, affect 1.2% of adults and 0.1% of the pediatric population [1-2], advantages, and disadvantages of each modality are reviewed. and obstetrical injuries, which occur with an inc ...
Process Management and Quality Assurance for Intracranial
... ensure state-of-the-art treatments, i.e. safe treatments with a high quality. The reason is three-fold. First, choices made by the departmental management influence, in a positive or negative way, the quality and safety of a new treatment technique introduced in clinical use. Second, retrospective a ...
... ensure state-of-the-art treatments, i.e. safe treatments with a high quality. The reason is three-fold. First, choices made by the departmental management influence, in a positive or negative way, the quality and safety of a new treatment technique introduced in clinical use. Second, retrospective a ...
Acute Chest Pain — Suspected Aortic Dissection
... CTA, transesophageal echocardiography (TEE), and magnetic resonance imaging (MRI) in detecting aortic dissection [12,15,19,25]. Evaluation of the relative accuracy of these modalities is confounded by the fact that technical improvements in CT, MRI, and TEE have outpaced our ability to perform neces ...
... CTA, transesophageal echocardiography (TEE), and magnetic resonance imaging (MRI) in detecting aortic dissection [12,15,19,25]. Evaluation of the relative accuracy of these modalities is confounded by the fact that technical improvements in CT, MRI, and TEE have outpaced our ability to perform neces ...
cone beam ct: non-dental applications
... CBCT 3D-cephalometric analysis Conventional lateral cephalograms were used for many years for ortho dontic assessment, treatment and follow-up. On these 2D projection images both the bony structures and the overlying soft tissues could be evaluated and measured prior to surgery or non-surgical orth ...
... CBCT 3D-cephalometric analysis Conventional lateral cephalograms were used for many years for ortho dontic assessment, treatment and follow-up. On these 2D projection images both the bony structures and the overlying soft tissues could be evaluated and measured prior to surgery or non-surgical orth ...
the Abstract-Book here
... abstracts. The 2014 meeting, the 10 th of its kind, is about to kick off in Leipzig and we are very thankful for having received so many excellent abstracts once again reflecting the enormous activity in our field. This year‘s two-day program (Fr., Oct. 10 – Sa., Oct. 11) is divided into eight topic ...
... abstracts. The 2014 meeting, the 10 th of its kind, is about to kick off in Leipzig and we are very thankful for having received so many excellent abstracts once again reflecting the enormous activity in our field. This year‘s two-day program (Fr., Oct. 10 – Sa., Oct. 11) is divided into eight topic ...
technique - Dr. Barry A. Kaplan
... fully appreciate the region of interest. The vestibule can be defined (red arrow), and the thickness of the soft tissue attached to the alveolus superior to the tooth root. The soft tissue biotype can also be seen as thick or thin (pink arrow), as well as the facial cortical bone. The enhanced diagn ...
... fully appreciate the region of interest. The vestibule can be defined (red arrow), and the thickness of the soft tissue attached to the alveolus superior to the tooth root. The soft tissue biotype can also be seen as thick or thin (pink arrow), as well as the facial cortical bone. The enhanced diagn ...
Member Benefit Guide - American Roentgen Ray Society
... close to 23,000. For more than 100 years, AJR has been recognized as one of the most respected specialty journals in the world. ...
... close to 23,000. For more than 100 years, AJR has been recognized as one of the most respected specialty journals in the world. ...
AUTOMATED DETERMINATION OF ARTERIAL INPUT FUNCTION
... study and reduces inter-operator variation. ...
... study and reduces inter-operator variation. ...
Nuclear medicine
Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease. Nuclear medicine scans are usually conducted by radiographers. Nuclear medicine, in a sense, is ""radiology done inside out"" or ""endoradiology"" because it records radiation emitting from within the body rather than radiation that is generated by external sources like X-rays.