搜索结果: 1-15 共查到“医学 Attenuation”相关记录15条 . 查询时间(0.078 秒)
The Value of CT Attenuation in Distinguishing Atypical Adenomatous Hyperplasia from Adenocarcinoma in Situ
Atypical adenomatous hyperplasia Adenocarcinoma in situ Computed tomography
2014/11/14
Advances in high-resolution computed tomography (CT) scanning have increased the detection of small ground-glass opacity (GGO) nodules and also allowed such images to be investigated in detail. Howeve...
The Value of CT Attenuation in Distinguishing Atypical Adenomatous Hyperplasia from Adenocarcinoma in Situ
Atypical adenomatous hyperplasia Adenocarcinoma in situ Computed tomography
2013/12/4
Background and objective: Advances in high-resolution computed tomography (CT) scanning have increased the detection of small ground-glass opacity (GGO) nodules and also allowed such images to be inve...
Attenuation of Cardiovascular Responses and Upper Airway Events to Tracheal Extubation by Low Dose Propofol
Propofol Hemodynamics Respiratory System Airway Extubation
2015/9/30
Background: Hemodynamic changes and respiratory tract complications are often followed by tracheal extubation. These events may be dangerous in neurosurgical patients and those with cardiovascular dis...
Analysis of parameters affecting impact force attenuation in landing of human vertical free fall
parameters affecting force attenuation human vertical free fall
2010/1/7
Analysis of parameters affecting impact force attenuation in landing of human vertical free fall.
The importance of attenuation correction for coincidence positron tomography on Hybrid PET/SPECT Gamma system
coincidence positron tomography Hybrid PET/SPECT Gamma system
2010/1/6
The importance of attenuation correction for coincidence positron tomography on Hybrid PET/SPECT Gamma system/.
Evaluation of Attenuation Correction Process in Cardiac SPECT Images
Attenuation correction Myocardial perfusion SPECT
2009/12/17
Introduction: Attenuation correction is a useful process for improving myocardial perfusion SPECT and is dependent on activity and distribution of attenuation coefficients in the body (attenuation map...
Adaptive Bayesian Iterative Transmission Reconstruction for Attenuation Correction in Myocardial Perfusion Imaging with SPECT/Slow-Rotation Low-Output CT Systems
Myocardial Perfusion Imaging SPECT/Slow-Rotation Low-Output CT Systems
2009/9/7
Objectives. SPECT/slow-rotation low-output CT systems can produce streak artifacts in filtered backprojection (FBP) attenuation maps, impacting attenuation correction (AC) in myocardial perfusion imag...
A comparison of different doses of remifentanil and tracheal lidocaine on attenuation of cardiovascular responses to laryngoscopy and tracheal intubation
cardiovascular responses laryngoscopy intubation
2009/7/6
Background: The efficacy of remifentanil infusion versus tracheal lidocaine for attenuation of the cardiovascular responses to tracheal intubation has been previously reported. This study compared h...
Attenuation of Vasospasm by Dexmedetomidine after Experimental Subarachnoidal Haemorrhage in Rabbits
Dexmedetomidine subarachnoid haemorrhage vasospasm
2009/6/16
Aim:Vasospasm is one of the most important factors that influence the successful treatment of ruptured intracranial aneurysm. We studied if vasospasm following subarachnoidal haemorrhage (SAH) can be ...
Attenuation of brain hyperbaric oxygen toxicity by fasting is not related to ketosis
seizure hyperbaric rat animal
2009/6/8
The effect of 24 h of fasting and changes in blood glucose and beta-hydroxybutyrate (BHB) level on latency to seizures in hyperbaric oxygen (HBO2) was studied. Conscious, unrestrained rats implanted w...
Mechanism of stress-induced attenuation of the testicular response to gonadotropin：possible involvement of testicular opioids, a pertussis toxin-sensitive G-protein, and phosphodiesterase
stress-induced attenuation possible involvement testicular opioids pertussis toxin-sensitive G-protein
2009/2/16
This study examined the potential role of testicular opioids, a pertussis toxin (PT)-sensitive G-protein, and phosphodiesterase in mediating the inhibitory effect of immobilization stress on testi...
More acidic dietary acid-base load is associated with reduced calcaneal broadband ultrasound attenuation in women but not in men: results from the EPIC-Norfolk cohort study1,2,3
Acid-base balance diet broadband ultrasound attenuation BUA bone density potential renal acid load
2008/12/10
Background: Dietary patterns that promote mild metabolic acidosis may have a negative effect on bone density.Objective: We investigated the relation between a measure of dietary acid-base load, potent...
Effective x-ray attenuation coefficient measurements from two full field digital mammography systems for data calibration applications
x-ray attenuation coefficient measurements two full field digital mammography systems data calibration applications
2010/2/25
Logarithmic response curves are well approximated as linear. Measured effective x-ray attenuation coefficients are characteristic quantities independent of the imaging system and are in agreement with...
Attenuation of allergic airway inflammation and associated pulmonary functions by mycobacterial antigens is independent of IgE in a mouse model of asthma
airway hyperresponsiveness asthma Bacillus Calmette-Guérin eosinophils IgE Mycobacterium vaccae
2010/11/24
Neither BCG nor M. vaccae were able to attenuate the EAR, yet both were able to abrogate the parameters used to evaluate the LAR. Interestingly, in neither case were serum or OVA-specific IgE levels r...
Shock accelerations and attenuation in downhill and level running
Shock accelerations downhill and level running shock waves
2010/1/7
Shock accelerations and attenuation in downhill and level running.