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AdoptedRules02009-00806 - Colorado Secretary of State
AdoptedRules02009-00806 - Colorado Secretary of State

... “Aluminum equivalent” means the thickness of aluminum (type 1100 alloy with a nominal chemical composition of aluminum 99.00 percent minimum and copper 0.12 percent maximum) affording the same attenuation, under specified conditions, as the material in question. “Attenuation block” means a block or ...
Code of Colorado Regulations - Colorado Secretary of State
Code of Colorado Regulations - Colorado Secretary of State

... “Aluminum equivalent” means the thickness of aluminum (type 1100 alloy with a nominal chemical composition of aluminum 99.00 percent minimum and copper 0.12 percent maximum) affording the same attenuation, under specified conditions, as the material in question. “Attenuation block” means a block or ...
3 The Genitourinary System - Society of Nuclear Medicine
3 The Genitourinary System - Society of Nuclear Medicine

... The relative uptake of the radiopharmaceutical provides a measure of relative renal function and should be described in the report because it is an important clinical parameter. The report also may refer to the following indices: 1. Tmax is the time to peak height of the renogram curve. MAG3, DTPA a ...
Simultaneous Multiparametric PET/MRI with Silicon Photomultiplier
Simultaneous Multiparametric PET/MRI with Silicon Photomultiplier

... approaches. Combining state-of-the-art PET and MRI technologies without loss of system performance and overall image quality can provide opportunities for new scientific and clinical innovations. Here, we present a multiparametric PET/MR imager based on a smallanimal dedicated, high-performance, sil ...
Synchrotron x-ray imaging of pulmonary alveoli in respiration in live
Synchrotron x-ray imaging of pulmonary alveoli in respiration in live

... studying alveoli at the right upper lung apices that have minimal lung movement, subpleural alveoli under open thorax conditions, or alveoli that have been removed from the body and processed for histology. The strength of TrXM II imaging we use in this study is that it is applicable to dynamic stud ...
Effectiveness of dynamic contrast
Effectiveness of dynamic contrast

... RECIST criteria, dynamic contrast-enhanced MRI measures and histopathological examination was 69.2%. It could be concluded that dynamic contrast-enhanced MRI examination is an effective method for assessing the clinical response of neoadjuvant chemotherapy according to RECIST, and our data indicate ...
View Full PDF - Bioscience Reports
View Full PDF - Bioscience Reports

... help elucidate the penile venous anatomy [8]. However, conventional cavernosography does not always reveal precise penile veins of interest because due to overlapping by other veins, bone or cavernous body. The obstruction of visualization of these structures also makes it difficult to show the orig ...
Proptosis - Lieberman`s eRadiology
Proptosis - Lieberman`s eRadiology

... • More commonly involves orbital roof (requires severe blunt trauma) Very important to tell patients not to blow their nose → can introduce infection into orbit from sinuses ...
Assessment of left ventricular ejection fraction in patients - VU-dare
Assessment of left ventricular ejection fraction in patients - VU-dare

... the mitral valve plane and as a consequence the left ventricular cavity might be difficult to determine exactly. On the other hand, Simpson’s biplane method used in 2D echocardiography volume assessment makes geometric assumptions which might not hold true in case of regional deformation, which is p ...
Nuclear Pharmacy/Molecular Imaging Residency
Nuclear Pharmacy/Molecular Imaging Residency

... professionals and to deliver effective training to those health care professionals. Residents exit the program demonstrating professional maturity and judgment by following a personal philosophy of practice, monitoring their own performance, and exhibiting commitment to the profession. ...
Three-Dimensional Reconstruction of the Vessel Lumen as an
Three-Dimensional Reconstruction of the Vessel Lumen as an

... vessel lumen is only possible through the use of more expensive potentially invasive imaging procedures, such as computed tomography angiography, magnetic resonance angiography, and conventional angiography. Described here is a method to determine vessel diameter of the internal carotid artery (ICA) ...
Original Article Near-Miss Transcription Errors
Original Article Near-Miss Transcription Errors

... errors, one can easily draw conclusions about the farreaching consequences these errors could have caused had they reached the patient. Because this study demonstrated a vast underreporting of NMTEs, it further demonstrated that the use of a transcription error queue within an order imaging software ...
Non-Invasive ECG Mapping To Guide Catheter Ablation
Non-Invasive ECG Mapping To Guide Catheter Ablation

... with the median number of continuous rotations being 2.6, but would often recur at the same or adjacent site. On the other hand, an average of 6 events was noted from a focal site. In a subset of patients in this study, electrogram characteristics of AF driver versus non-driver regions were compared ...
Navigating the New ACR Breast MR Accreditation Program
Navigating the New ACR Breast MR Accreditation Program

... • Based on ACR Practice Guideline for the Performance of Contrast-Enhanced Magnetic Resonance Imaging (MRI) of the Breast • Provides facilities with peer review and constructive feedback on their staff’s qualifications, equipment, quality control (QC), quality assurance, MR safety policies and image ...
Liver Masses: A Clinical, Radiologic, and Pathologic
Liver Masses: A Clinical, Radiologic, and Pathologic

... specificity to be the sole diagnostic criterion in routine clinical practice. Moreover, combining DWI with contrastenhanced MRI provides high accuracy for the detection and characterization of HCCs.11,12 Recent advances in CT provide higher spatial and temporal resolution for the evaluation of liver ...
Clinical study of peroneal artery perforators with
Clinical study of peroneal artery perforators with

... need to incorporate portions of the soleus or flexor hallucis longus muscle. However, for this to occur, the viability of the skin island depends upon the successful inclusion of a sufficient number of perforators and the size and location of these perforators are integral during flap design and ele ...
May 2011 - American College of Radiology
May 2011 - American College of Radiology

... modalities have been the focus of payment reductions both legislatively and through the regulatory process for several years. These payment reductions are making it increasingly difficult, even impossible, for many radiologists to keep their offices and freestanding imaging centers open in an enviro ...
EVALUATION OF AN IN-LINE PHASE
EVALUATION OF AN IN-LINE PHASE

... A close-up view of the edge enhancement effects. The capital letters will be used in a comparison of the modified EE\N values for the tomographic reconstruction images and this radiograph. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The phase-contrast radiographic image showing the ...
Comparison of Auto-moving Table Contrast-enhanced 3
Comparison of Auto-moving Table Contrast-enhanced 3

... Background. This study was conducted to compare diagnostic efficacy of contrast-enhanced 3-dimensional magnetic resonance angiography (3-D MRA) with that of the conventional x-ray iodinated digital subtraction angiography (DSA) in patients with peripheral arterial occlusive diseases (PAOD). Methods. ...
Positron Emission Tomography in Urology - EU-ACME
Positron Emission Tomography in Urology - EU-ACME

... event can be detected with conventional gammacameras, but nowadays dedicated PET-cameras are widely available. The principal difference between conventional cameras and PET-cameras is the presence of coincidence electronics. As stated, an annihilation event produces 2 photons released in opposite di ...
PARATHYROID AND THYROID IMAGING
PARATHYROID AND THYROID IMAGING

... to search for parathyroid adenomas because it does not require intravenous injections of any compounds. Unfortunatelp its accuracy is less than that of the other modalities mainly because of the difficulty in identifying ectopic parathyroid adenomas that may occur throughout the neck, behind airfill ...
The effect of limited MR field of view in MR/PET - CAMP-TUM
The effect of limited MR field of view in MR/PET - CAMP-TUM

... Purpose: A critical question in the development of combined MR/PET scanners is whether MR can provide the tissue attenuation data required for PET reconstruction. Unfortunately, MR images are often unable to encompass the entire patient. The resulting truncation in the transverse plane leads to inco ...
Development and Implementation of an Anthropomorphic Pediatric
Development and Implementation of an Anthropomorphic Pediatric

... Proton therapy is gaining acceptance as a cancer treatment modality, as it allows for dose deposition to the target volume while sparing the surrounding healthy tissue. This technique is advantageous for craniospinal pediatric patients, as it reduces the radiation side effects that can occur. The pu ...
Left ventricular ejection fraction measurements: accuracy and
Left ventricular ejection fraction measurements: accuracy and

... We selected from our clinical database a group of inpatients, admitted from June 2000 to June 2006 for known or suspected ischemic heart disease. The inclusion criterion was having undergone two-dimensional echocardiography, gated SPECT and LVG for clinical purposes. Patients who developed an acute ...
PACS Specification - UK Imaging Informatics Group
PACS Specification - UK Imaging Informatics Group

... modalities) annotation of laterality, orientation, and spatial localization, annotation of demographics, management and basic technique information for safe identification and usage simple measurements of linear distance and angle cine capability for images that involve cardiac motion (e.g., cardiac ...
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Image-guided radiation therapy

Image-guided radiation therapy (IGRT) is the process of frequent two and three-dimensional imaging, during a course of radiation treatment, used to direct radiation therapy utilizing the imaging coordinates of the actual radiation treatment plan. The patient is localized in the treatment room in the same position as planned from the reference imaging dataset. An example of IGRT would include localization of a cone beam computed tomography (CBCT) dataset with the planning computed tomography (CT) dataset from planning. IGRT would also include matching planar kilovoltage (kV) radiographs or megavoltage (MV) images with digital reconstructed radiographs (DRRs) from the planning CT. These two methods comprise the bulk of IGRT strategies currently employed circa 2013.This process is distinct from the use of imaging to delineate targets and organs in the planning process of radiation therapy. However, there is clearly a connection between the imaging processes as IGRT relies directly on the imaging modalities from planning as the reference coordinates for localizing the patient. The variety of medical imaging technologies used in planning includes x-ray computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) among others. The precision of IGRT is significantly improved when N-localizer technology is used in conjunction with these medical imaging technologies. Through advancements in imaging technology, combined with a further understanding of human biology at the molecular level, the impact of IGRT on radiotherapy treatment continues to evolve.
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