optimisation and establishment of diagnostic
... radiography examinations in Portugal following an analysis and evaluation of current practice. Methods and materials: Anthropometric data (weight, patient height and thickness of the irradiated anatomy) was collected from 9,935 patients referred for a radiography procedure ...
... radiography examinations in Portugal following an analysis and evaluation of current practice. Methods and materials: Anthropometric data (weight, patient height and thickness of the irradiated anatomy) was collected from 9,935 patients referred for a radiography procedure ...
Planning for PACS - American College of Radiology
... resembles the traditional four-panel film viewer. Other radiologists may prefer the cheaper two-monitor system because it is faster to electronically change the image display than to turn one’s head to view four monitors. Some believe that four-monitor systems are essential for studies with very lar ...
... resembles the traditional four-panel film viewer. Other radiologists may prefer the cheaper two-monitor system because it is faster to electronically change the image display than to turn one’s head to view four monitors. Some believe that four-monitor systems are essential for studies with very lar ...
M u l t i d e t e c... C T o f S o l i t a... P u l m o n a r y N... *, Bradley S. Sabloff,
... mycoses and tuberculosis, have this appearance. However, despite the lower incidence of malignancy in solid nodules, most primary lung cancers and metastases present as solid nodules.21 Cavitation occurs in both infectious/inflammatory conditions as well as in primary and metastatic tumors. Up to 15 ...
... mycoses and tuberculosis, have this appearance. However, despite the lower incidence of malignancy in solid nodules, most primary lung cancers and metastases present as solid nodules.21 Cavitation occurs in both infectious/inflammatory conditions as well as in primary and metastatic tumors. Up to 15 ...
Normal Anatomy and Imaging of the Hip: Emphasis on
... attachment of the superior joint capsule, commonly several millimeters above the labrum, creates the well-described prominent superior perilabral recess (►Fig. 5). Although similar perilabral recesses are found along the entire circumference of the labrum, they are typically smaller in the anterior ...
... attachment of the superior joint capsule, commonly several millimeters above the labrum, creates the well-described prominent superior perilabral recess (►Fig. 5). Although similar perilabral recesses are found along the entire circumference of the labrum, they are typically smaller in the anterior ...
article in press - The EndoExperience
... M. Loubele et al. / European Journal of Radiology xxx (2008) xxx–xxx ...
... M. Loubele et al. / European Journal of Radiology xxx (2008) xxx–xxx ...
cone beam ct for dental and maxillofacial radiology
... It also has roles in treatment planning, monitoring disease progression and in assessing treatment efficacy. However, an integral part of radiology is exposure of patients and, potentially, clinical staff to X-rays. No exposure to X-rays can be considered completely free of risk, so the use of radia ...
... It also has roles in treatment planning, monitoring disease progression and in assessing treatment efficacy. However, an integral part of radiology is exposure of patients and, potentially, clinical staff to X-rays. No exposure to X-rays can be considered completely free of risk, so the use of radia ...
The Left Atrial Appendage: Anatomy, Function, and Noninvasive
... The left atrial appendage (LAA) is a finger-like extension originating from the main body of the left atrium. Atrial fibrillation (AF) is the most common clinically important cardiac arrhythmia, occurring in approximately 0.4% to 1% of the general population and increasing with age to >8% in those >80 ...
... The left atrial appendage (LAA) is a finger-like extension originating from the main body of the left atrium. Atrial fibrillation (AF) is the most common clinically important cardiac arrhythmia, occurring in approximately 0.4% to 1% of the general population and increasing with age to >8% in those >80 ...
Reversible Rapid Neck Swelling Following Carotid Artery Stenting
... contrast material.7 Parotitis following carotid stenting also has been reported.8 However, this condition usually involves the salivary glands bilaterally unlike in this case. Patient did not have any swelling during prior procedures that involved use of iodinated contrast materials. In summary, a p ...
... contrast material.7 Parotitis following carotid stenting also has been reported.8 However, this condition usually involves the salivary glands bilaterally unlike in this case. Patient did not have any swelling during prior procedures that involved use of iodinated contrast materials. In summary, a p ...
AdoptedRules02009-00806 - Colorado Secretary of State
... As used in Part 6, these terms have the definitions set forth as follows: “AAPM Online Report 03” means “Assessment of Display Performance for Medical Imaging Systems”, AAPM Online Report No. 03 by Task Group 18 of the American Association of Physicists in Medicine (April 2003). “AAPM Report 4” mean ...
... As used in Part 6, these terms have the definitions set forth as follows: “AAPM Online Report 03” means “Assessment of Display Performance for Medical Imaging Systems”, AAPM Online Report No. 03 by Task Group 18 of the American Association of Physicists in Medicine (April 2003). “AAPM Report 4” mean ...
European Journal of Medical Physics
... Francis R. Verdun. Institute of Radiation Physics (IRA), CHUV, Lausanne, Switzerland Introduction: Radiation protection in medicine is becoming a real challenge when dealing with the use of technologies such as CT, fluoroscopy and PET/CT. In Switzerland, since January 2012, medical physicists have to ...
... Francis R. Verdun. Institute of Radiation Physics (IRA), CHUV, Lausanne, Switzerland Introduction: Radiation protection in medicine is becoming a real challenge when dealing with the use of technologies such as CT, fluoroscopy and PET/CT. In Switzerland, since January 2012, medical physicists have to ...
Atrophy and Fatty Infiltration of the Supraspinatus Muscle
... evaluation of supraspinatus muscle atrophy and fatty infiltration. Subjects AND METHODS. Forty-five shoulders in 39 patients who had undergone shoulder MRI for the assessment of rotator cuff disease were evaluated blindly with sonography. Supraspinatus muscle atrophy was quantitatively assessed by c ...
... evaluation of supraspinatus muscle atrophy and fatty infiltration. Subjects AND METHODS. Forty-five shoulders in 39 patients who had undergone shoulder MRI for the assessment of rotator cuff disease were evaluated blindly with sonography. Supraspinatus muscle atrophy was quantitatively assessed by c ...
Code of Colorado Regulations - Colorado Secretary of State
... an assemblage of components for the generation, emission, and reception of x-rays and the transformation, storage and visual display of the resultant x-ray image, with the assembled system designed and used for irradiation of any part of the human or animal body for the purpose of diagnosis or visua ...
... an assemblage of components for the generation, emission, and reception of x-rays and the transformation, storage and visual display of the resultant x-ray image, with the assembled system designed and used for irradiation of any part of the human or animal body for the purpose of diagnosis or visua ...
Patient Dose in common CT examinations-2003
... European Commission (EC) have all recommended the setup and the implementation of CT dose guidance levels for the most frequent examinations to promote strategies for the optimization of CT doses3. These dose guidance levels should be derived using data from a wide scale survey. Therefore, it is of ...
... European Commission (EC) have all recommended the setup and the implementation of CT dose guidance levels for the most frequent examinations to promote strategies for the optimization of CT doses3. These dose guidance levels should be derived using data from a wide scale survey. Therefore, it is of ...
National Radiology QI Guidelines V3
... Recent reported cases of cancer misdiagnoses have reaffirmed the critical role of Quality Improvement (QI) in the delivery of patient care. The highly professional work of all Radiologists in Ireland is commended but the Faculty of Radiologists is cognisant that Radiology, like many diagnostic servi ...
... Recent reported cases of cancer misdiagnoses have reaffirmed the critical role of Quality Improvement (QI) in the delivery of patient care. The highly professional work of all Radiologists in Ireland is commended but the Faculty of Radiologists is cognisant that Radiology, like many diagnostic servi ...
handbook - Challenge TB
... developed considerably and the imaging quality of X-ray examination has been greatly improved and the methods have been widely disseminated. In particular, chest radiography is the most common examination to be used as one of the initial steps to diagnose pulmonary disease including respiratory infe ...
... developed considerably and the imaging quality of X-ray examination has been greatly improved and the methods have been widely disseminated. In particular, chest radiography is the most common examination to be used as one of the initial steps to diagnose pulmonary disease including respiratory infe ...
Contrast medium administration and image acquisition parameters
... rates have been known to increase the risk of extravasation (30). Injection rates used in renal CTA range between 4–6 mL/s since faster injection rates are necessary with faster scanners. Contrast media volume. Continual efforts have been made to provide patient-specific contrast administration. The ...
... rates have been known to increase the risk of extravasation (30). Injection rates used in renal CTA range between 4–6 mL/s since faster injection rates are necessary with faster scanners. Contrast media volume. Continual efforts have been made to provide patient-specific contrast administration. The ...
rsd product brochure - Radiology Support Devices
... to the further development and manufacture of crash-test dummies for auto safety and to a phantom (a medical term for a dummy) which was the first such device to guide radiation treatments for cancer by measuring the dose that would be delivered to a patient, as determined in a corresponding phantom ...
... to the further development and manufacture of crash-test dummies for auto safety and to a phantom (a medical term for a dummy) which was the first such device to guide radiation treatments for cancer by measuring the dose that would be delivered to a patient, as determined in a corresponding phantom ...
Criteria for Acceptability of Medical Radiological Equipment
... radiotherapy equipment in normal use ought to be able to pass. The most common form of criterion is a “suspension level” for a measurement of a performance or safety parameter. Failure to meet a suspension level will establish that the operation of the equipment involved is sufficiently poor to rais ...
... radiotherapy equipment in normal use ought to be able to pass. The most common form of criterion is a “suspension level” for a measurement of a performance or safety parameter. Failure to meet a suspension level will establish that the operation of the equipment involved is sufficiently poor to rais ...
Diagnosis of Internal Carotid Artery Stenosis Greater than 70% with
... years) with cerebrovascular disease underwent sonographic examination with power Doppler imaging within 1 week before or after cerebral angiography. One ICA vessel could not be evaluated by cerebral angiography owing to technical difficulty, and duplex sonography could not be performed in five vesse ...
... years) with cerebrovascular disease underwent sonographic examination with power Doppler imaging within 1 week before or after cerebral angiography. One ICA vessel could not be evaluated by cerebral angiography owing to technical difficulty, and duplex sonography could not be performed in five vesse ...
Traumatic Injuries to the Cervical Spine
... mechanism of injury: hyperflexion, hyperextension, compression and lateral flexion/shearing.11,12 Fractures Caused by Hyperflexion. The flexion tear drop fracture is a fracture of the inferior-anterior portion of a vertebral body, typically occurring at C2. (See Fig. 8.) It is often the result of di ...
... mechanism of injury: hyperflexion, hyperextension, compression and lateral flexion/shearing.11,12 Fractures Caused by Hyperflexion. The flexion tear drop fracture is a fracture of the inferior-anterior portion of a vertebral body, typically occurring at C2. (See Fig. 8.) It is often the result of di ...
Ms - F6 Publishing Home
... Procedure guidance methods include ultrasound, computed tomography (CT) scan and, more rarely, magnetic resonance imaging[9-11]. Depending on the institution, the patient characteristics, and the experience of the interventional radiologists, percutaneous tumor ablation can be guided by ultrasound o ...
... Procedure guidance methods include ultrasound, computed tomography (CT) scan and, more rarely, magnetic resonance imaging[9-11]. Depending on the institution, the patient characteristics, and the experience of the interventional radiologists, percutaneous tumor ablation can be guided by ultrasound o ...
IAEA HUMAN HEALTH SERIES No. 11
... PET and CT data couples functional and anatomical information, thus optimizing the clinical utility of the images. PET/CT, used with [18F]-FDG as a radiotracer, has had such an impact on patient management that it has reformed many traditional diagnostic approaches, and offers a new tool to be used ...
... PET and CT data couples functional and anatomical information, thus optimizing the clinical utility of the images. PET/CT, used with [18F]-FDG as a radiotracer, has had such an impact on patient management that it has reformed many traditional diagnostic approaches, and offers a new tool to be used ...
I W. Mohnike · G. Hör · H. R. Schelbert (Eds.)
... the examination time, spares the patient the time needed for two visits to the doctor and provides nuclear medical specialists and radiologists with anatometabolic images: Anatomy, (surrounding) structure, localisation and molecular biology expand the diagnostic framework. The current trend points t ...
... the examination time, spares the patient the time needed for two visits to the doctor and provides nuclear medical specialists and radiologists with anatometabolic images: Anatomy, (surrounding) structure, localisation and molecular biology expand the diagnostic framework. The current trend points t ...
The Influence of Accurate Attenuation Correction - ORCA
... and so will be different in a normal healthy state compared to a diseased state. For example, a cancerous tumour which has an increased rate of cell turnover may take up more of a radiopharmaceutical, than the surrounding healthy tissue. The difference in the number of detected gamma photons from ab ...
... and so will be different in a normal healthy state compared to a diseased state. For example, a cancerous tumour which has an increased rate of cell turnover may take up more of a radiopharmaceutical, than the surrounding healthy tissue. The difference in the number of detected gamma photons from ab ...
Medical imaging
Medical imaging is the technique and process of creating visual representations of the interior of a body for clinical analysis and medical intervention. Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease. Medical imaging also establishes a database of normal anatomy and physiology to make it possible to identify abnormalities. Although imaging of removed organs and tissues can be performed for medical reasons, such procedures are usually considered part of pathology instead of medical imaging.As a discipline and in its widest sense, it is part of biological imaging and incorporates radiology which uses the imaging technologies of X-ray radiography, magnetic resonance imaging, medical ultrasonography or ultrasound, endoscopy, elastography, tactile imaging, thermography, medical photography and nuclear medicine functional imaging techniques as positron emission tomography.Measurement and recording techniques which are not primarily designed to produce images, such as electroencephalography (EEG), magnetoencephalography (MEG), electrocardiography (ECG), and others represent other technologies which produce data susceptible to representation as a parameter graph vs. time or maps which contain information about the measurement locations. In a limited comparison these technologies can be considered as forms of medical imaging in another discipline.Up until 2010, 5 billion medical imaging studies had been conducted worldwide. Radiation exposure from medical imaging in 2006 made up about 50% of total ionizing radiation exposure in the United States.In the clinical context, ""invisible light"" medical imaging is generally equated to radiology or ""clinical imaging"" and the medical practitioner responsible for interpreting (and sometimes acquiring) the images is a radiologist. ""Visible light"" medical imaging involves digital video or still pictures that can be seen without special equipment. Dermatology and wound care are two modalities that use visible light imagery. Diagnostic radiography designates the technical aspects of medical imaging and in particular the acquisition of medical images. The radiographer or radiologic technologist is usually responsible for acquiring medical images of diagnostic quality, although some radiological interventions are performed by radiologists.As a field of scientific investigation, medical imaging constitutes a sub-discipline of biomedical engineering, medical physics or medicine depending on the context: Research and development in the area of instrumentation, image acquisition (e.g. radiography), modeling and quantification are usually the preserve of biomedical engineering, medical physics, and computer science; Research into the application and interpretation of medical images is usually the preserve of radiology and the medical sub-discipline relevant to medical condition or area of medical science (neuroscience, cardiology, psychiatry, psychology, etc.) under investigation. Many of the techniques developed for medical imaging also have scientific and industrial applications.Medical imaging is often perceived to designate the set of techniques that noninvasively produce images of the internal aspect of the body. In this restricted sense, medical imaging can be seen as the solution of mathematical inverse problems. This means that cause (the properties of living tissue) is inferred from effect (the observed signal). In the case of medical ultrasonography, the probe consists of ultrasonic pressure waves and echoes that go inside the tissue to show the internal structure. In the case of projectional radiography, the probe uses X-ray radiation, which is absorbed at different rates by different tissue types such as bone, muscle and fat.The term noninvasive is used to denote a procedure where no instrument is introduced into a patient's body which is the case for most imaging techniques used.