cardiac ct mri imaging for electrophysiology
Báo cáo khoa học: "SemiFDG-PET/CT imaging for staging and target volume delineation in conformal radiotherapy of anal carcinoma" potx
... showed PET-GTV and PET-CTV to be significantly smaller than CT- GTV (p = 1.2 × 10-4) and CT- CTV (p = 2.9 × 10-4) respectively PET /CT- GTV and PET /CT- CTV, that were used for clinical purposes, were ... 3.7% GTV and CTV contours changed in 55.6% and 37.0% of cases respectively PET /CT- GTV and PET /CT- CTV, that were used for clinical purposes, were significantly greater than CTGTV and CT- CTV These ... patients after PET /CT imaging [13] In our series, the GTVs and the CTVs detected by CT alone and by PET /CT images were analyzed in details and compared The contours outlined on PET /CT imaging were...
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Báo cáo khoa học: "SemiDecreased 3D observer variation with matched CT-MRI, for target delineation in Nasopharynx cancer" pdf
... Clinical Target Volume (CTV) and CTV elective (CTV el) comparison First phase: delineation on CT; second phase: delineation on CT, registered MRI, forced use of sagittal reconstructions, and with improved ... extension) and the CTV-elective (= CTV + cm margin and the entire nasopharynx) was performed Automatic 3D expansion of the CTV, with cm as a starting point for the CTV elective, was supplied ... MRI available show that the effort was successful The mean SD of the distances decreased both for the CTV and for the CTV elective delineations No ground truth of tumor extent was available for...
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Báo cáo khoa học: "[18F]fluoroethylcholine-PET/CT imaging for radiation treatment planning of recurrent and primary prostate cancer with dose escalation to PET/CT-positive lymph node" potx
... tumor characteristics Pt Age (yr) stage Gleason iPSA PSA nadir dt PSA (mo.) PSA before FEC PET /CT Previous therpay 73 cT2 cN0 11,5 - 11,5 pos (P) - 59 cT2 cN0 9,1 - 9,1 pos (P) - 64 cT3 cN0 n.a ... adjuvant antihormonal therapy Imaging Staging included physical examination with digital rectal palpation, complete laboratory tests, FEC-PET /CT, and MRI with endorectal coil (routinely used since ... volumes [3,4] The potential roles of PET/ CT in radiooncology are (1) patient selection for treatment and (2) target volume selection and delineation, because PET /CT with radiolabelled choline (C11-choline,...
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Báo cáo khoa học: "FDG-PET/CT imaging for staging and radiotherapy treatment planning of head and neck carcinoma" pps
... were contoured on CT images obtaining CT- GTV, PET (PET-GTV), and PET /CT images (PET/CTGTV) The PET /CT- GTV included both PET and CT information The clinical target volume (CTV), for treatment purpose, ... strengths of functional (PET) and structural imaging (CT) co-registered in a single image set The purpose of this study was to investigate the potential impact of using PET /CT image fusion for the management ... additional mm margin to the CTV For clinical purposes, we always considered the PET image as an additional information to CT image either for tumor staging or for target contouring for treatment planning...
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Báo cáo y học: "Cardiac CT and MRI guide surgery in impending left ventricular rupture after acute myocardial infarction'''' ppt
... characterize the anatomy of the infarct and myocardial outpouching to determine the urgency for cardiac surgery During surgery, which was performed within 24 hours of CT/ MR imaging, a distinct ... hemodynamically stable, cardiac magnetic resonance (CMR) imaging was performed Cardiac MR images demonstrated a large subacute inferosep- Discussion Figure omegaly five days small bilateral infarction pulmonary ... Authors' contributions JVC conducted the CT and MRI exams and drafted the manuscript JS drafted the manuscript and conducted the literature search ASS was directly involved in the patient care...
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Báo cáo y học: "Diffusion-weighted magnetic resonance imaging for predicting the clinical outcome of comatose survivors after cardiac arrest: a cohort study" pptx
... from this study as follows: lack of MRI data because of early death before MRI (n = 10); MRI delay over five days after ROSC (n = 3); no informed consent (n = 4); cardiac arrest due to intracranial ... structural brain injury Yet, evaluating hypoxic ischemic brain injury with CT or conventional MRI often underestimates the actual extent of injury in the acute period [6,7] In contrast to CT and ... maps were analysed for this study The T2WI was used to detect old hyperintense abnormalities to exclude chronic infarction, or it was used as a reference image for this study The MRIs were reviewed...
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Báo cáo khoa học : Tissue Doppler imaging for the diagnosis of coronary artery disease ppt
... velocity imaging can be recommended for clinical use, especially the pulsed mode Strain rate imaging may be useful as additional imaging, but needs further refinement before it is ready for routine ... clinical setting Tissue Doppler imaging- based indices of myocardial function Ejection phase indices Tissue Doppler imaging has excellent ability to quantify myocardial function and has good temporal ... diagnostic information with regard to myocardial viability after coronary reperfusion Does myocardial IVC acceleration reflect inotropy? Similar to LV ejection fraction, peak systolic ejection velocity...
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Báo cáo khoa học: " Investigation of the usability of conebeam CT data sets for dose calculation" pptx
... 30 40 50 60 70 Dose in Gy pCT PTV Boost pCT PTVring1 pCT Rektum pCT Blase pCT PTV1 pCT PTVring2 CBCT Rektum deform CBCT Blase deform ard HU-D and and (b)axial slices for using the patient based ... pCT PTV pCT Ring2 CBCT lung right deform CBCT lung left deform pCT cord pCT Ring1 pCT lung right pCT lung left pCT oesophagus ard HU-D CBCT (dashed) in CBCT using the patient based HU-D table ... Compared to planning CTs, a reduced number of projections is acquired and less information is available for image reconstruction [17] The CT values of a CBCT cannot directly be used for dose http://www.ro-journal.com/content/3/1/42...
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Báo cáo khoa học: " Comparison of T2 and FLAIR imaging for target delineation in high grade gliomas" pptx
... average fractional component of the CTV Union was 12.9% for T2 and 25.7% for FLAIR, while the overlap contributed the majority (63.6%) as shown in figure For example, the composite CTV for patient ... by CT, paved the foundation for successful partial brain treatment [2,3,5,14,23-28] Nearly concurrent with introduction of CT imaging, MRI was developed and quickly became an important tool for ... volumes, the CTV and PTV for each MRI sequence were normalized to their respective union volumes This allowed for comparison using a two tailed paired student t-test Results Patient Characteristics...
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cáo khoa học: " A knowledge translation collaborative to improve the use of therapeutic hypothermia in post-cardiac arrest patients: protocol for a stepped wedge randomized trial" pdf
... behalf of the Collaborative Group on Induced Hypothermia for Neuroprotection After Cardiac Arrest: Hypothermia for neuroprotection after cardiac arrest: systematic review and individual patient ... analysis, particularly for modeling the effect of time on the effectiveness of an intervention [18] The wedge randomization will be computer-generated by the statistician on the project (KT) The unit ... collection Primary data collection will occur on all patients who are transferred to a participating hospital following an OHCA Trained in-hospital data collectors will complete chart abstraction...
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Báo cáo y học: "Diagnostic imaging for chronic plantar heel pain: a systematic review and meta-analysis" ppsx
... researchers and practitioners to investigate the involvement of specific anatomical structures in CPHP Imaging types used include ultrasonography and magnetic resonance imaging (MRI) for investigation ... data and information regarding the overall study design, subject characteristics and imaging techniques were obtained by two authors (AM and JB) with use of a standardised data extraction form Studies ... by ultrasonography and magnetic resonance imaging (MRI) [23], one by MRI alone [27], and one by plain film x-ray [21] A factor considered important for this outcome was the prevalence of diabetes...
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Báo cáo y học: "Development of a synoptic MRI report for primary rectal cancer" ppsx
... no synoptic MRI report developed or implemented for rectal cancer in North America [16] Aims The specific aims of this project are to develop a synoptic MRI report for primary rectal cancer, ... used MRI report to select and prioritize key criteria for synoptic Process Process used to select and prioritize key criteria for synoptic MRI report This outline will serve as a template for ... in clinical practice This information will be critical in order to develop effective strategies for implementation of the synoptic MRI report (specific aim one) for primary rectal cancer Physician...
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báo cáo khoa học: " Development of a synoptic MRI report for primary rectal cancer" doc
... no synoptic MRI report developed or implemented for rectal cancer in North America [16] Aims The specific aims of this project are to develop a synoptic MRI report for primary rectal cancer, ... used MRI report to select and prioritize key criteria for synoptic Process Process used to select and prioritize key criteria for synoptic MRI report This outline will serve as a template for ... in clinical practice This information will be critical in order to develop effective strategies for implementation of the synoptic MRI report (specific aim one) for primary rectal cancer Physician...
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Báo cáo khoa học: "Vasopressin combined with epinephrine during cardiac resuscitation: a solution for the future" ppt
... vasopressin be injected during CPR based on results from a subgroup analysis and retrospective studies? The pragmatic answer is yes As already described, basic life support saves the ‘best’ cardiac arrest ... an initial injection of mg epinephrine i.v and a subsequent injection of 40 IU vasopressin i.v every 3–5 minutes during CPR (Figure 1), since it may combine both beneficial effects of combining ... injection of mg epinephrine i.v and a subsequent injection of 40 IU vasopressin i.v every 3–5 minutes if return of spontaneous circulation does not occur, independently of the initial electrocardiographic...
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Multimodal optical spectroscopy and imaging for improving cancer detection in the head and neck at endoscopy
... CT imaging, MRI is a non-ionizing imaging technique that can be applied for imaging the whole body of the patients but provide structural information at a high spatial resolution as well as CT ... OPTICAL SPECTROSCOPY AND IMAGING FOR IMPROVING CANCER DETECTION IN THE HEAD AND NECK AT ENDOSCOPY LIN KAN 2012 MULTIMODAL OPTICAL SPECTROSCOPY AND IMAGING FOR IMPROVING CANCER DETECTION IN THE ... resonance imaging (MRI) and optical endoscopic imaging techniques X-ray Computed Tomography (CT) 10 X-ray Computed Tomography (CT) , one of the biomedical imaging 11 techniques, has been widely practiced...
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High resolution imaging for e heritage
... two main characteristics of imaging for e-heritage: highresolution requirement and restricted working environments 1.1.1 High-Resolution Imaging One of the purposes of imaging for e-heritage ... main characteristics of 2D and 3D imaging for e-heritage: highresolution imaging requirement and restricted working environment Note that resolution refers to the sampling rate on the object, instead ... backlogged for processing 35 CHAPTER Field Study of 2D Imaging with Large-Format Digital Camera Large-Format Camera Imaging In contrast to the previously described procedure, a well designed large-format...
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Model based cardiac CT segmentation and 3d heart reconstruction
... structure of the object but the object shape Therefore, it cannot produce accurate result Snake is deformable model based approach, which can be deformed to any shape as long as all the forces ... internal forces, image forces and external forces Internal forces are defined to constrain the stretching and banding of the snake, which keep the snake smooth throughout the deformation Image forces ... morphological operator based algorithm is to detect the object forms or shapes from the images based on a set of pre-defined structuring elements Usually a set of structuring elements is defined based on...
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ứng dụng cmri ( cardiac magnetic resonance imaging ) cho y học
... tắt Tên đầy đủ CMRI Cardiac Magnetic Resonance Imaging CT Computed Tomography DFT Discrete Fourier Transform EEG Electro Encephalo Graphy EPI Echo Planar Imaging FID Free Induction Decay FLAIR ... Angle Short Imaging FMRI Functional Magnetic Resonance Imaging FOV Fun ctional FT Magnetic GE Resonance Imaging IFT Field Of View IR Inversion Recovery MRA Magnetic Resonance Angiography MRI Magnetic ... 2.1.2 Vectơ cường độ điện trường 3.1 Vectơ cảm ứng từ, vectơ cường độ từ trường 3.1.1 Vectơ cảm ứng từ B 3.1.2 Nguyên lí chồng chất từ trường 3.1.3 Vectơ...
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