Title: Multimodal TOF PET and/or SPECT probe operating in low
... translation of the internal probe/detector relative to the external detector is tracked as a function of time, motion artifacts from the region of the prostate can be compensated in the image reconstruction process. The two proposed instruments are shown in Figs. 3 a.b.c. . In the first a high-resol ...
... translation of the internal probe/detector relative to the external detector is tracked as a function of time, motion artifacts from the region of the prostate can be compensated in the image reconstruction process. The two proposed instruments are shown in Figs. 3 a.b.c. . In the first a high-resol ...
R E V I E W Physics,
... from overlapping structures. These three-dimensional imaging tasks will benefit from the high quantum efficiency that direct detectors offer. Other promising applications include full-field and high-resolution stereotactic breast biopsies and diagnostic imaging. However, it is essential that full-fi ...
... from overlapping structures. These three-dimensional imaging tasks will benefit from the high quantum efficiency that direct detectors offer. Other promising applications include full-field and high-resolution stereotactic breast biopsies and diagnostic imaging. However, it is essential that full-fi ...
j35-2004-ieeetmi-panorama
... acquires overlapping images by precise simultaneous translation of the X-ray source and image intensifier. The images are aligned by semi-automatically detecting and matching semantically meaningful features on a reconstruction plane. Composed images of objects that are not on that plane will have p ...
... acquires overlapping images by precise simultaneous translation of the X-ray source and image intensifier. The images are aligned by semi-automatically detecting and matching semantically meaningful features on a reconstruction plane. Composed images of objects that are not on that plane will have p ...
Special Edition RSNA 2011
... than a third of all consultations. Once again, Agfa HealthCare was chosen and the practice installed the DX-M system*, benefiting from the innovative technology of needle-based detectors. With the MUSICA² image processing software, it’s an ideal solution for digital mammography. Considering the qual ...
... than a third of all consultations. Once again, Agfa HealthCare was chosen and the practice installed the DX-M system*, benefiting from the innovative technology of needle-based detectors. With the MUSICA² image processing software, it’s an ideal solution for digital mammography. Considering the qual ...
A Segmentation-Based Method for Metal Artifact Reduction1
... artifacts by 20 – 40% in terms of the standard deviation and provides more information for the assessment of soft tissues and osseous structures surrounding the surgical clips. Conclusion. Mean shift technique and feedback strategy can help to improve the image quality in terms of reducing metal art ...
... artifacts by 20 – 40% in terms of the standard deviation and provides more information for the assessment of soft tissues and osseous structures surrounding the surgical clips. Conclusion. Mean shift technique and feedback strategy can help to improve the image quality in terms of reducing metal art ...
Image stabilization for scanning laser ophthalmoscopy
... The retinal tracking system works by steering the entire image raster produced by the imaging galvanometer with the motion of the eye using the tracking galvanometers (Cambridge Technology Inc.). A tracking beam, locked onto a retinal feature, senses the motion of the eye. Thus the retinal tracker d ...
... The retinal tracking system works by steering the entire image raster produced by the imaging galvanometer with the motion of the eye using the tracking galvanometers (Cambridge Technology Inc.). A tracking beam, locked onto a retinal feature, senses the motion of the eye. Thus the retinal tracker d ...
Standardized volumetric 3D-analysis of SPECT/CT imaging in
... altered metabolic activity it is essential that the reference system is well defined. Further, to overcome the relative position and orientation of the patient to the coordinate system of the scanner, the reference system should be based on anatomic landmarks that are identifiable in subsequent scan ...
... altered metabolic activity it is essential that the reference system is well defined. Further, to overcome the relative position and orientation of the patient to the coordinate system of the scanner, the reference system should be based on anatomic landmarks that are identifiable in subsequent scan ...
European Journal of Radiology The future of PACS in healthcare
... digital recordings, holography uses lasers and light to record data in three dimensions. Unlike conventional technologies that record data sequentially, holography allows a million bits of data to be written and read in parallel with a single light beam [19]. This enables significantly higher transfe ...
... digital recordings, holography uses lasers and light to record data in three dimensions. Unlike conventional technologies that record data sequentially, holography allows a million bits of data to be written and read in parallel with a single light beam [19]. This enables significantly higher transfe ...
Multiparametric Magnetic Resonance Imaging for Predicting
... relaxation rate of tissue water and, therefore, the measured MR signal intensity. By fitting the resulting signal intensity time course to an appropriate pharmacokinetic model, physiological parameters can be extracted, which relate to tissue perfusion and permeability (Ktrans, the volume transfer r ...
... relaxation rate of tissue water and, therefore, the measured MR signal intensity. By fitting the resulting signal intensity time course to an appropriate pharmacokinetic model, physiological parameters can be extracted, which relate to tissue perfusion and permeability (Ktrans, the volume transfer r ...
Multi Slice Spiral CT Scanner
... Detector: Capable of acquiring 128 slices per 360 deg. of rotation through latest flying focal spot technology or equivalent. Geometric and absorption efficiency of detectors in %. Inbuilt mechanism for adapting the tube current during each scan this must enable radiation dosage reduction wher ...
... Detector: Capable of acquiring 128 slices per 360 deg. of rotation through latest flying focal spot technology or equivalent. Geometric and absorption efficiency of detectors in %. Inbuilt mechanism for adapting the tube current during each scan this must enable radiation dosage reduction wher ...
VistaScan Plus
... and treatment plan. Well-informed patients are usually more loyal and willing to accept services than others. The diagnostic systems have a large part to play in patient acceptance. If the image of a modern surgery is highlighted with modern diagnostic equipment, the use of minimum doses and digital ...
... and treatment plan. Well-informed patients are usually more loyal and willing to accept services than others. The diagnostic systems have a large part to play in patient acceptance. If the image of a modern surgery is highlighted with modern diagnostic equipment, the use of minimum doses and digital ...
ACR–SPR–SRU Practice Parameter for Performing and Interpreting
... Intraoperative ultrasound. Evaluation of superficial structures such as breast, thyroid, testicle, skin. Endoluminal ultrasound. Ophthalmologic ultrasound. Echocardiography. Musculoskeletal ultrasound. ...
... Intraoperative ultrasound. Evaluation of superficial structures such as breast, thyroid, testicle, skin. Endoluminal ultrasound. Ophthalmologic ultrasound. Echocardiography. Musculoskeletal ultrasound. ...
Artifacts on multi-detector computed tomography (MDCT)
... When feasible, all the metallic objects on the patient should be removed prior to the scan. In case of irremovable objects such as dental fillings, surgical clips, prosthesis or orthopedic appliances, the X-ray tube gantry angulations can be set in order to exclude these objects. Alternatively, incr ...
... When feasible, all the metallic objects on the patient should be removed prior to the scan. In case of irremovable objects such as dental fillings, surgical clips, prosthesis or orthopedic appliances, the X-ray tube gantry angulations can be set in order to exclude these objects. Alternatively, incr ...
The “Penumbra Sign” on Magnetic Resonance Images of Brodie`s
... Brodie’s abscess is a bone abscess described as a localized primary purulent collection and a sclerotic wall. Brodie’s abscess is usually confined to the metaphysis (1). There may be ambiguity in differentiating Brodie’s abscess from other malignant and benign osseous lesions radiologically (2). It ...
... Brodie’s abscess is a bone abscess described as a localized primary purulent collection and a sclerotic wall. Brodie’s abscess is usually confined to the metaphysis (1). There may be ambiguity in differentiating Brodie’s abscess from other malignant and benign osseous lesions radiologically (2). It ...
A Comparison of Default and Reduced Bandwidth MR Imaging of
... Fifty-one default and reduced bandwidth comparison MR studies were obtained. All studies were obtained at 1.5 T on the GE Signa MR system with the body coil as transmitter and an 18 x 32-cm rectangular surface coil as a receiver. The frequency-encoding direction was craniad to caudad in all studies. ...
... Fifty-one default and reduced bandwidth comparison MR studies were obtained. All studies were obtained at 1.5 T on the GE Signa MR system with the body coil as transmitter and an 18 x 32-cm rectangular surface coil as a receiver. The frequency-encoding direction was craniad to caudad in all studies. ...
Femoral Anteversion in the Hip comparison of measurements by
... for guiding diagnosis as well as treatment.2, 5, 6, 7, 8, 9 and 10 Although computed tomography (CT) has been regarded by some investigators as the gold standard, no study has proven that CT measurement of anteversion is correlated with any other relevant variable. Furthermore, although multiple tec ...
... for guiding diagnosis as well as treatment.2, 5, 6, 7, 8, 9 and 10 Although computed tomography (CT) has been regarded by some investigators as the gold standard, no study has proven that CT measurement of anteversion is correlated with any other relevant variable. Furthermore, although multiple tec ...
Signing on the Future
... are executed with maximum The success of our MRI examinations, which protocols efficiency. Services has attracted vendors obtain images of to use Emory as a test site for more than one area of the body during new technologies giving us access to the one scanning session. Although this latest technol ...
... are executed with maximum The success of our MRI examinations, which protocols efficiency. Services has attracted vendors obtain images of to use Emory as a test site for more than one area of the body during new technologies giving us access to the one scanning session. Although this latest technol ...
Patients
... Thirty-three patients were identified as having suitable fractures for study inclusion. Twenty-five were excluded; 6 for a history of current cigarette smoking, 8 as they underwent open reduction and internal fixation following a failure of conservative management, 3 as they were from out of area an ...
... Thirty-three patients were identified as having suitable fractures for study inclusion. Twenty-five were excluded; 6 for a history of current cigarette smoking, 8 as they underwent open reduction and internal fixation following a failure of conservative management, 3 as they were from out of area an ...
Understanding image quality and radiation dose in MSCT and
... d) Due to their focussed geometry curved detectors are better suited to capture x-rays than flat detectors. e) The diagnostic CT technology has a higher level of maturity and the soft- and hardware is more sophisticated than in flat detector CT. ...
... d) Due to their focussed geometry curved detectors are better suited to capture x-rays than flat detectors. e) The diagnostic CT technology has a higher level of maturity and the soft- and hardware is more sophisticated than in flat detector CT. ...
INbreast:
... design and evaluate the performance of the algorithms. This impairs the fair judgment of the quality of the individual work and the comparison of the accuracy of different methods because performance is database-dependent. Good results can have been obtained in databases with ‘‘easy’’ cases, whereas ...
... design and evaluate the performance of the algorithms. This impairs the fair judgment of the quality of the individual work and the comparison of the accuracy of different methods because performance is database-dependent. Good results can have been obtained in databases with ‘‘easy’’ cases, whereas ...
PACS (picture archiving and communication systems): filmless
... structures to be well seen on a single exposure. For example, it often permits the left lower lobe to be assessed behind the left cardiac silhouette, whereas this information is not available on a relatively under exposed hard copy chest radiograph (fig 2). There is thus an increase in the amount of ...
... structures to be well seen on a single exposure. For example, it often permits the left lower lobe to be assessed behind the left cardiac silhouette, whereas this information is not available on a relatively under exposed hard copy chest radiograph (fig 2). There is thus an increase in the amount of ...
4D Digital Subtraction Angiography: Implementation and
... BACKGROUND AND PURPOSE: Conventional 3D-DSA volumes are reconstructed from a series of projections containing temporal information. It was our purpose to develop a technique which would generate fully time-resolved 3D-DSA vascular volumes having better spatial and temporal resolution than that which ...
... BACKGROUND AND PURPOSE: Conventional 3D-DSA volumes are reconstructed from a series of projections containing temporal information. It was our purpose to develop a technique which would generate fully time-resolved 3D-DSA vascular volumes having better spatial and temporal resolution than that which ...
Cardiovascular topics
... Accurate and reliable determination of left ventricular function and perfusion are important to guide therapeutic management, improve risk stratification, and provide prognostic information in the cardiac evaluation of patients. Hence it is of great importance that the results are reliable and repro ...
... Accurate and reliable determination of left ventricular function and perfusion are important to guide therapeutic management, improve risk stratification, and provide prognostic information in the cardiac evaluation of patients. Hence it is of great importance that the results are reliable and repro ...
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... Two scans are made for each breast: a reference scan in which the tank is filled with matching fluid only, and a scan with the breast immersed in matching fluid. We fit data from the frequency domain measurements of the breast to an analytic solution of the diffusion equation for a homogeneous mediu ...
... Two scans are made for each breast: a reference scan in which the tank is filled with matching fluid only, and a scan with the breast immersed in matching fluid. We fit data from the frequency domain measurements of the breast to an analytic solution of the diffusion equation for a homogeneous mediu ...