Exploring the relationship between SDNR and detectability in dual
... Contrast imaging has been used to explore angiogenesis in breast carcinoma by tracking the uptake and washout of contrast agents in tissues. Currently, magnetic resonance imaging (MRI) ,coupled with gadolinium chelated agents, is the preferred imaging technique to provide the vascular information th ...
... Contrast imaging has been used to explore angiogenesis in breast carcinoma by tracking the uptake and washout of contrast agents in tissues. Currently, magnetic resonance imaging (MRI) ,coupled with gadolinium chelated agents, is the preferred imaging technique to provide the vascular information th ...
CLASSlCAL RADIATION THERAPY
... Basic dose distribution data are usually measured in a water phantom, which closely approximates the radiation absorption and scattering properties of muscle and other soft tissues. Another reason for the choice ofwater as a phantom material is that it is universally available with reproducible radi ...
... Basic dose distribution data are usually measured in a water phantom, which closely approximates the radiation absorption and scattering properties of muscle and other soft tissues. Another reason for the choice ofwater as a phantom material is that it is universally available with reproducible radi ...
DIANA®
... the DIANA procedure – from the biomechanics of the SIJ, to determining the indication and conservative treatment options, to assessment of the surgical results. Then, you will learn the practical application of DIANA. For your first DIANA operations, we provide a tutor to observe and assist who is c ...
... the DIANA procedure – from the biomechanics of the SIJ, to determining the indication and conservative treatment options, to assessment of the surgical results. Then, you will learn the practical application of DIANA. For your first DIANA operations, we provide a tutor to observe and assist who is c ...
DIANA® - SIGNUS Medizintechnik GmbH
... the DIANA procedure – from the biomechanics of the SIJ, to determining the indication and conservative treatment options, to assessment of the surgical results. Then, you will learn the practical application of DIANA. For your first DIANA operations, we provide a tutor to observe and assist who is c ...
... the DIANA procedure – from the biomechanics of the SIJ, to determining the indication and conservative treatment options, to assessment of the surgical results. Then, you will learn the practical application of DIANA. For your first DIANA operations, we provide a tutor to observe and assist who is c ...
Criteria for Acceptability of Medical Radiological Equipment
... Failure to meet a suspension level will establish that the operation of the equipment involved is sufficiently poor to raise an alarm indicating action is required. The assessment up to this point will generally be a matter for the holder1. The equipment failing to meet the suspension level will hav ...
... Failure to meet a suspension level will establish that the operation of the equipment involved is sufficiently poor to raise an alarm indicating action is required. The assessment up to this point will generally be a matter for the holder1. The equipment failing to meet the suspension level will hav ...
Signal, noise power spectrum, and detective quantum
... imagers ~FPIs! typically incorporate an array of hydrogenated amorphous silicon ~a-Si:H! thin-film transistors ~TFTs! as pixel switching elements and can detect incident x rays either directly ~by means of a continuous photoconductive layer! or indirectly ~by means of a scintillator coupled to a pho ...
... imagers ~FPIs! typically incorporate an array of hydrogenated amorphous silicon ~a-Si:H! thin-film transistors ~TFTs! as pixel switching elements and can detect incident x rays either directly ~by means of a continuous photoconductive layer! or indirectly ~by means of a scintillator coupled to a pho ...
Imaging clinically localized prostate cancer
... In cases of incongruent findings between color Doppler and conventional Doppler, other conditions (such as prostatitis, which can show increased flow on CDUS), should be considered [38]. Of interest, preliminary studies have suggested that CDUS may predict the behavior and aggressiveness of cancer (Gl ...
... In cases of incongruent findings between color Doppler and conventional Doppler, other conditions (such as prostatitis, which can show increased flow on CDUS), should be considered [38]. Of interest, preliminary studies have suggested that CDUS may predict the behavior and aggressiveness of cancer (Gl ...
Evaluation of Palpable Breast Masses
... The first step in evaluating patients with palpable breast masses often is fine-needle aspiration (FNA), in which a 22- to 25gauge needle is used to aspirate cystic fluid or sample solid lesions for cytology. In some patients, the lesion completely resolves after FNA, and no further diagnostic work- ...
... The first step in evaluating patients with palpable breast masses often is fine-needle aspiration (FNA), in which a 22- to 25gauge needle is used to aspirate cystic fluid or sample solid lesions for cytology. In some patients, the lesion completely resolves after FNA, and no further diagnostic work- ...
Quantitative Methods for Tumor Imaging with Dynamic PET
... There is always a need and drive to improve modern cancer care. Dynamic positron emission tomography (PET) offers the advantage of in vivo functional imaging, combined with the ability to follow the physiological processes over time. In addition, by applying tracer kinetic modeling to the dynamic PE ...
... There is always a need and drive to improve modern cancer care. Dynamic positron emission tomography (PET) offers the advantage of in vivo functional imaging, combined with the ability to follow the physiological processes over time. In addition, by applying tracer kinetic modeling to the dynamic PE ...
JC Virus Infection of the Brain
... HIV accounts for approximately 80% of the PML cases, there is increasing incidence of the disease in non-HIV settings.3 JCV is a ubiquitous human pathogen, and both inhalation and ingestion of contaminated water have been suggested as major modes of transmission of the virus.4,5 The primary infectio ...
... HIV accounts for approximately 80% of the PML cases, there is increasing incidence of the disease in non-HIV settings.3 JCV is a ubiquitous human pathogen, and both inhalation and ingestion of contaminated water have been suggested as major modes of transmission of the virus.4,5 The primary infectio ...
Arteriovenous Fistulas: Complications of a Gunshot Wound
... Color-flow duplex scanning demonstrates the integrity of vessels and flow velocity/directionality; however, US is extremely operator dependent Conventional angiography Identifies vascular injury and has interventional capacity; however, this is an invasive procedure and does not provide informat ...
... Color-flow duplex scanning demonstrates the integrity of vessels and flow velocity/directionality; however, US is extremely operator dependent Conventional angiography Identifies vascular injury and has interventional capacity; however, this is an invasive procedure and does not provide informat ...
olivary nucleus
... prior right pontine hemorrhage was referred to our institute for follow-up imaging. ...
... prior right pontine hemorrhage was referred to our institute for follow-up imaging. ...
Cone-beam x-ray phase-contrast tomography for the observation of
... x-rays in 1895, the technique was used to image bones inside the hand [150], paving the way for a new kind of medical examination. As x-ray images are projections, overlapping structures can not unambiguously be discerned in a single x-ray image. One method to overcome this limitation is computed to ...
... x-rays in 1895, the technique was used to image bones inside the hand [150], paving the way for a new kind of medical examination. As x-ray images are projections, overlapping structures can not unambiguously be discerned in a single x-ray image. One method to overcome this limitation is computed to ...
Multi-Slice CT Scanners
... of 2.5, 3.0, 3.5 or 4.5, with four slices per rotation, for optimal image quality. Philips also recommends specific pitches, including Pitchx values of 0.875 and 1.25. On GE multi-slice systems, only two pitches are available. HQ (High Quality) and HS (High Speed) modes correspond to Pitchd = 3 and ...
... of 2.5, 3.0, 3.5 or 4.5, with four slices per rotation, for optimal image quality. Philips also recommends specific pitches, including Pitchx values of 0.875 and 1.25. On GE multi-slice systems, only two pitches are available. HQ (High Quality) and HS (High Speed) modes correspond to Pitchd = 3 and ...
Isotropic Reconstruction of SPECT Data Using OSEM3D
... choice (1–9). Its increasing popularity is based on the ability to accurately model imaging physics in a clinically acceptable reconstruction time (⬍2 minutes). The improvements in image quality are obtained by compensating for effects such as depth-dependent collimator blurring, nonuniform patient- ...
... choice (1–9). Its increasing popularity is based on the ability to accurately model imaging physics in a clinically acceptable reconstruction time (⬍2 minutes). The improvements in image quality are obtained by compensating for effects such as depth-dependent collimator blurring, nonuniform patient- ...
EANM/ESC guidelines for radionuclide imaging of cardiac function
... Level A is rarely available for diagnostic imaging and level B sometimes; hence, level C is most often applied. In the present guidelines, emphasis has been laid on the presentation of evidence-based data with direct references to original papers. Clinical indications may often depend on several loc ...
... Level A is rarely available for diagnostic imaging and level B sometimes; hence, level C is most often applied. In the present guidelines, emphasis has been laid on the presentation of evidence-based data with direct references to original papers. Clinical indications may often depend on several loc ...
Fat-Suppression Techniques for 3-T MR Imaging of the Musculo
... High-field-strength (3-T) MR imaging is becoming more widely used for a variety of musculoskeletal applications, such as high-resolution imaging of small joints, hyaline cartilage, neoplasms, and peripheral nerves (neurography). Although these applications benefit from the improved image quality aff ...
... High-field-strength (3-T) MR imaging is becoming more widely used for a variety of musculoskeletal applications, such as high-resolution imaging of small joints, hyaline cartilage, neoplasms, and peripheral nerves (neurography). Although these applications benefit from the improved image quality aff ...
Lecture 10 Mammography Thur - International Atomic Energy Agency
... contrast falls below 0.1 for energies above 27 keV ...
... contrast falls below 0.1 for energies above 27 keV ...
Fluoroscopy-guided pudendal nerve block and
... (Lidotop ) upon visiting our pain clinic. For the initial diagnostic approach, a ganglion of impar ...
... (Lidotop ) upon visiting our pain clinic. For the initial diagnostic approach, a ganglion of impar ...
Principles of CT: Multislice CT
... elements could be linked in pairs for the acquisition of 16 thicker slices (4). During 2003 and 2004, MSCT manufacturers introduced models with both fewer than and more than 16 channels. Six-slice and 8-slice models were introduced by manufacturers as cost-effective alternatives. At the same time, ...
... elements could be linked in pairs for the acquisition of 16 thicker slices (4). During 2003 and 2004, MSCT manufacturers introduced models with both fewer than and more than 16 channels. Six-slice and 8-slice models were introduced by manufacturers as cost-effective alternatives. At the same time, ...
Radiation exposure and thyroid cancer: a review
... increased with the radiation dose to the thyroid gland. Females were at a higher risk (3.7 fold) of developing a thyroid nodule than males, and the risk decreased with increasing age at exposure. In 1987, the study was expanded to subjects living on atolls away from Bikini Island and showed that the ...
... increased with the radiation dose to the thyroid gland. Females were at a higher risk (3.7 fold) of developing a thyroid nodule than males, and the risk decreased with increasing age at exposure. In 1987, the study was expanded to subjects living on atolls away from Bikini Island and showed that the ...
Ipsilateral screening MRI optimized
... proven cancer who underwent preoperative MR imaging of the ipsilateral breast were reviewed to determine the frequency of recommending biopsy and biopsy results. The likelihood of detecting otherwise occult cancer at MR imaging was calculated as a function of family history of breast cancer, index c ...
... proven cancer who underwent preoperative MR imaging of the ipsilateral breast were reviewed to determine the frequency of recommending biopsy and biopsy results. The likelihood of detecting otherwise occult cancer at MR imaging was calculated as a function of family history of breast cancer, index c ...
Stress injury of the acromion: case report and literature review
... and backswing [7]. Regarding our case, the correct time of the reported sudden pain is difficult to precise, since in amateurs these phases are not well defined, but it seemed to occur during the transition from backswing to downswing. Most stress injuries of the acromion reported were minimally dis ...
... and backswing [7]. Regarding our case, the correct time of the reported sudden pain is difficult to precise, since in amateurs these phases are not well defined, but it seemed to occur during the transition from backswing to downswing. Most stress injuries of the acromion reported were minimally dis ...
Soft Tissue Tumors
... sequences are often employed in the second plane to increase the conspicuity of tumors in addition to T1weighted images. Gradient-echo MR images may be used to accentuate magnetic susceptibility in identifying hemosiderin and depicting lesion-fat interfaces for neurovascular involvement. The chosen ...
... sequences are often employed in the second plane to increase the conspicuity of tumors in addition to T1weighted images. Gradient-echo MR images may be used to accentuate magnetic susceptibility in identifying hemosiderin and depicting lesion-fat interfaces for neurovascular involvement. The chosen ...