Retinal assessment using optical coherence tomography
... used to measure the delay of light reflected from tissue structures with near micron precision. Because femtosecond lasers were too bulky and expensive for routine clinical use, Huang worked on an interferometer system that could use a cheap and compact diode light source to measure the time-of-flig ...
... used to measure the delay of light reflected from tissue structures with near micron precision. Because femtosecond lasers were too bulky and expensive for routine clinical use, Huang worked on an interferometer system that could use a cheap and compact diode light source to measure the time-of-flig ...
The shading sign: is it exclusive of endometriomas?
... The shading sign is the magnetic resonance imaging (MRI) finding of T2 shortening [low signal on T2weighted images (T2WI)] in an adnexal cyst that is hyperintense on T1-weighted images (T1WI) [1]. The mechanism of shading is complex: the high viscosity of the cystic fluid and the high concentration of ...
... The shading sign is the magnetic resonance imaging (MRI) finding of T2 shortening [low signal on T2weighted images (T2WI)] in an adnexal cyst that is hyperintense on T1-weighted images (T1WI) [1]. The mechanism of shading is complex: the high viscosity of the cystic fluid and the high concentration of ...
Contemporary Reviews in Cardiovascular Medicine
... where PkVreg is the peak velocity of the MR jet by CW Doppler. Because the PISA calculation provides an instantaneous peak flow rate, EROA by this approach is the maximal EROA and may be larger than EROA calculated by other methods. If one assumes that ROA is constant throughout systole (which is of ...
... where PkVreg is the peak velocity of the MR jet by CW Doppler. Because the PISA calculation provides an instantaneous peak flow rate, EROA by this approach is the maximal EROA and may be larger than EROA calculated by other methods. If one assumes that ROA is constant throughout systole (which is of ...
3D Medical Image Reconstruction - Estudo Geral
... asymptomatic at earlier stages, but it has a high survival rate at the earliest stages. These characteristics make the screening and the accurate diagnostic important issues. With the aim of reduce the damage caused by breast diseases, new image techniques have arisen and the current techniques are ...
... asymptomatic at earlier stages, but it has a high survival rate at the earliest stages. These characteristics make the screening and the accurate diagnostic important issues. With the aim of reduce the damage caused by breast diseases, new image techniques have arisen and the current techniques are ...
SU-8 2000 - MicroChem
... SU-8 2100 and SU-8 2150 SU-8 2000 is a high contrast, epoxy based photoresist designed for micromachining and other microelectronic applications, where a thick, chemically and thermally stable image is desired. SU-8 2000 is an improved formulation of SU-8, which has been widely used by MEMS producer ...
... SU-8 2100 and SU-8 2150 SU-8 2000 is a high contrast, epoxy based photoresist designed for micromachining and other microelectronic applications, where a thick, chemically and thermally stable image is desired. SU-8 2000 is an improved formulation of SU-8, which has been widely used by MEMS producer ...
Imaging the Endometrium: Disease and Normal Variants1
... Other findings include tamoxifen-associated changes, intrauterine fluid collections, and endometrial adhesions. Although ultrasound (US) is almost always the first modality used in the radiologic work-up of endometrial disease, findings at sonohysterography, hysterosalpingography, magnetic resonance ...
... Other findings include tamoxifen-associated changes, intrauterine fluid collections, and endometrial adhesions. Although ultrasound (US) is almost always the first modality used in the radiologic work-up of endometrial disease, findings at sonohysterography, hysterosalpingography, magnetic resonance ...
Musculoskeletal Ultrasound: Focused Impact on MRI
... there are common indications for both imaging methods, such as evaluation of the rotator cuff and other focal tendon abnormalities, MRI continues to be the standard of care for imaging ligament, cartilage, and intraosseous abnormalities. However, ultrasound is an ideal and inexpensive alternative fo ...
... there are common indications for both imaging methods, such as evaluation of the rotator cuff and other focal tendon abnormalities, MRI continues to be the standard of care for imaging ligament, cartilage, and intraosseous abnormalities. However, ultrasound is an ideal and inexpensive alternative fo ...
Combined PET/MR: The Real Work Has Just Started. Summary
... correction of attenuation and scattered radiation. All approaches need to account for the presence of the scanning bed, positioning aids and MR radiofrequency (RF) coils employed during the combined examination. Inaccuracies in generating correct attenuation factors from the MR-based approaches rema ...
... correction of attenuation and scattered radiation. All approaches need to account for the presence of the scanning bed, positioning aids and MR radiofrequency (RF) coils employed during the combined examination. Inaccuracies in generating correct attenuation factors from the MR-based approaches rema ...
Transplanted Kidney Function Evaluation
... the timely recognition and management of graft dysfunction. Among several other factors, improvements in imaging modalities have been regarded as one of the factors contributing to increased short-term graft survival. Each imaging procedure has its own unique contribution to the evaluation of renal ...
... the timely recognition and management of graft dysfunction. Among several other factors, improvements in imaging modalities have been regarded as one of the factors contributing to increased short-term graft survival. Each imaging procedure has its own unique contribution to the evaluation of renal ...
MAGNETIC RESONANCE IMAGING OF THE INTERNALLY
... fractures and can accurately locate intra articular loose bodies. It also provides a noninvasive method of assessing the cruciate ligaments by thin section CT with reformatting in sagittal plane. This method however is not precise and exposes the patient to ionizing radiations 4. ARTHROSCOPY Arthros ...
... fractures and can accurately locate intra articular loose bodies. It also provides a noninvasive method of assessing the cruciate ligaments by thin section CT with reformatting in sagittal plane. This method however is not precise and exposes the patient to ionizing radiations 4. ARTHROSCOPY Arthros ...
AUTOMATED DETERMINATION OF ARTERIAL INPUT FUNCTION
... physiological analysis, and for dedicating your time during our late night study sessions. Robin Terry, thank you, my sister, for your support and, without you, I would have not survived from our hardest semester and my hard times. I give great thanks to Rachel Johnson, for teaching me about MRI kno ...
... physiological analysis, and for dedicating your time during our late night study sessions. Robin Terry, thank you, my sister, for your support and, without you, I would have not survived from our hardest semester and my hard times. I give great thanks to Rachel Johnson, for teaching me about MRI kno ...
Optimization of image acquisition parameters in chest
... the general cardiopulmonary status of the patient and is associated with high accessibility, relatively low effective doses (0.05 – 0.1 mSv for a combined posteroanterior (PA) and lateral (LAT) view) as well as low financial cost [2-7]. Being a 2D projection imaging technique, CXR has however been s ...
... the general cardiopulmonary status of the patient and is associated with high accessibility, relatively low effective doses (0.05 – 0.1 mSv for a combined posteroanterior (PA) and lateral (LAT) view) as well as low financial cost [2-7]. Being a 2D projection imaging technique, CXR has however been s ...
2016 technical summaries
... Mammography is currently the standard imaging modality used to screen women for breast abnormalities and, as a result, it is a tool of great importance for the early detection of breast cancer. Physical phantoms are commonly used as surrogates of breast tissue to evaluate some aspects of the perform ...
... Mammography is currently the standard imaging modality used to screen women for breast abnormalities and, as a result, it is a tool of great importance for the early detection of breast cancer. Physical phantoms are commonly used as surrogates of breast tissue to evaluate some aspects of the perform ...
Scientific and Educational Exhibits
... ducts, as seen at MR cholangiopancreatography, emphasizing their clinical relevance for surgical interventions. Background: During the past decade, the increasing number of hepatobiliary surgical procedures, mainly laparoscopic cholecystectomies but also liver transplantations, has been associated w ...
... ducts, as seen at MR cholangiopancreatography, emphasizing their clinical relevance for surgical interventions. Background: During the past decade, the increasing number of hepatobiliary surgical procedures, mainly laparoscopic cholecystectomies but also liver transplantations, has been associated w ...
Breast Imaging for Screening and Diagnosing Cancer
... Mammography is a specific type of imaging that uses a low-dose x-ray system for examination of the breasts. This is considered the best available method for early detection of breast cancer, particularly in the case of small or nonpalpable lesions. An abnormal screening mammogram requires a diagnost ...
... Mammography is a specific type of imaging that uses a low-dose x-ray system for examination of the breasts. This is considered the best available method for early detection of breast cancer, particularly in the case of small or nonpalpable lesions. An abnormal screening mammogram requires a diagnost ...
PDF, 1.2 MB
... international and mobile setting were investigated by building new types of technical connections and then by evaluating their feasibility. First a teleradiology link based on low-end technology was built for primary care and hospital settings. On evaluation, the total diagnostic agreement between t ...
... international and mobile setting were investigated by building new types of technical connections and then by evaluating their feasibility. First a teleradiology link based on low-end technology was built for primary care and hospital settings. On evaluation, the total diagnostic agreement between t ...
Duration and general contents of training
... The European Association of Radiology (EAR) and the Union Européenne des Medicins Specialistes (UEMS) Radiology Section and Board have drawn up these guidelines to support the introduction of Continuing Medical Education (CME) for radiologists in countries represented through their national societie ...
... The European Association of Radiology (EAR) and the Union Européenne des Medicins Specialistes (UEMS) Radiology Section and Board have drawn up these guidelines to support the introduction of Continuing Medical Education (CME) for radiologists in countries represented through their national societie ...
Traumatic Injuries to the Cervical Spine
... The rule states that on an open-mouth odontoid projection, the displacement of the lateral masses to a certain degree implies a ruptured ligament. All stable patients with a C1 fracture should have a magnetic resonance (MR) image taken to assess the integrity of the ligament. If the ligament is rupt ...
... The rule states that on an open-mouth odontoid projection, the displacement of the lateral masses to a certain degree implies a ruptured ligament. All stable patients with a C1 fracture should have a magnetic resonance (MR) image taken to assess the integrity of the ligament. If the ligament is rupt ...
Breast Imaging For Screening And Diagnosing Cancer
... Mammography is a specific type of imaging that uses a low-dose x-ray system for examination of the breasts. This is considered the best available method for early detection of breast cancer, particularly in the case of small or nonpalpable lesions. An abnormal screening mammogram requires a diagnost ...
... Mammography is a specific type of imaging that uses a low-dose x-ray system for examination of the breasts. This is considered the best available method for early detection of breast cancer, particularly in the case of small or nonpalpable lesions. An abnormal screening mammogram requires a diagnost ...
ACR-AAPM Practice Parameter For Reference Levels And
... communication between the physicians responsible for the clinical management of the patient and the Qualified Medical Physicist responsible for monitoring equipment and image quality and estimating patient dose. Adherence to this practice parameter should help to maximize the efficacious use of thes ...
... communication between the physicians responsible for the clinical management of the patient and the Qualified Medical Physicist responsible for monitoring equipment and image quality and estimating patient dose. Adherence to this practice parameter should help to maximize the efficacious use of thes ...
MRI Visiting Fellowship 15-16.pub
... describe the latest parameters of imaging protocols and how they can be applied in the diagnosis, treatment, and management of liver, brain and head & neck, kidney, breast and prostate cancers. describe the techniques for imaging, interpretation and post-processing of images using the most up- ...
... describe the latest parameters of imaging protocols and how they can be applied in the diagnosis, treatment, and management of liver, brain and head & neck, kidney, breast and prostate cancers. describe the techniques for imaging, interpretation and post-processing of images using the most up- ...
Development of Spect and Ct Tomographic Image Reconstruction
... Also, using more than two divisions per detector bin does not significantly improve reconstructed images. A chapter on iterative micro-CT reconstruction is also included. Our contribution to micro-CT reconstruction is the formulation and implementation of a cone-beam system matrix that reduces ring ...
... Also, using more than two divisions per detector bin does not significantly improve reconstructed images. A chapter on iterative micro-CT reconstruction is also included. Our contribution to micro-CT reconstruction is the formulation and implementation of a cone-beam system matrix that reduces ring ...
Chong Zhang Recovery of cerebrovascular morphodynamics from time-resolved rotational angiography
... into account the temporal changes that occur during the cardiac cycle. This is because these indices are derived from image modalities that do not provide sufficient temporal and/or spatial resolution to obtain dynamic aneurysm information, which is expected to be similar to or below image resolution. ...
... into account the temporal changes that occur during the cardiac cycle. This is because these indices are derived from image modalities that do not provide sufficient temporal and/or spatial resolution to obtain dynamic aneurysm information, which is expected to be similar to or below image resolution. ...
Roles of Nuclear Cardiology, Cardiac Computed Tomography, and
... Vascular calcification has been associated with atherosclerosis since the 1920s (1). In 1959, Blankenhorn and Stern described the importance of coronary artery calcium (CAC) as a marker of coronary atherosclerosis (2). For many years, the assessment of CAC using fluoroscopy was recognized as providi ...
... Vascular calcification has been associated with atherosclerosis since the 1920s (1). In 1959, Blankenhorn and Stern described the importance of coronary artery calcium (CAC) as a marker of coronary atherosclerosis (2). For many years, the assessment of CAC using fluoroscopy was recognized as providi ...