Comput. Biol. Med. - Hypodensity extractor: a phantom study.

Tópicos

{ signal(2180) analysi(812) frequenc(800) }
{ method(2212) result(1239) propos(1039) }
{ imag(2830) propos(1344) filter(1198) }
{ motion(1329) object(1292) video(1091) }
{ surgeri(1148) surgic(1085) robot(1054) }
{ imag(1057) registr(996) error(939) }
{ network(2748) neural(1063) input(814) }
{ take(945) account(800) differ(722) }
{ treatment(1704) effect(941) patient(846) }
{ risk(3053) factor(974) diseas(938) }
{ perform(1367) use(1326) method(1137) }
{ spatial(1525) area(1432) region(1030) }
{ model(3480) simul(1196) paramet(876) }
{ high(1669) rate(1365) level(1280) }
{ use(1733) differ(960) four(931) }
{ estim(2440) model(1874) function(577) }
{ studi(2440) review(1878) systemat(933) }
{ problem(2511) optim(1539) algorithm(950) }
{ chang(1828) time(1643) increas(1301) }
{ concept(1167) ontolog(924) domain(897) }
{ design(1359) user(1324) use(1319) }
{ case(1353) use(1143) diagnosi(1136) }
{ data(3963) clinic(1234) research(1004) }
{ perform(999) metric(946) measur(919) }
{ research(1085) discuss(1038) issu(1018) }
{ import(1318) role(1303) understand(862) }
{ model(2341) predict(2261) use(1141) }
{ gene(2352) biolog(1181) express(1162) }
{ first(2504) two(1366) second(1323) }
{ use(2086) technolog(871) perceiv(783) }
{ cancer(2502) breast(956) screen(824) }
{ implement(1333) system(1263) develop(1122) }
{ survey(1388) particip(1329) question(1065) }
{ activ(1452) weight(1219) physic(1104) }
{ model(3404) distribut(989) bayesian(671) }
{ can(774) often(719) complex(702) }
{ imag(1947) propos(1133) code(1026) }
{ data(1737) use(1416) pattern(1282) }
{ inform(2794) health(2639) internet(1427) }
{ system(1976) rule(880) can(841) }
{ measur(2081) correl(1212) valu(896) }
{ bind(1733) structur(1185) ligand(1036) }
{ sequenc(1873) structur(1644) protein(1328) }
{ method(1219) similar(1157) match(930) }
{ featur(3375) classif(2383) classifi(1994) }
{ imag(2675) segment(2577) method(1081) }
{ patient(2315) diseas(1263) diabet(1191) }
{ assess(1506) score(1403) qualiti(1306) }
{ framework(1458) process(801) describ(734) }
{ error(1145) method(1030) estim(1020) }
{ learn(2355) train(1041) set(1003) }
{ clinic(1479) use(1117) guidelin(835) }
{ algorithm(1844) comput(1787) effici(935) }
{ extract(1171) text(1153) clinic(932) }
{ method(1557) propos(1049) approach(1037) }
{ data(1714) softwar(1251) tool(1186) }
{ control(1307) perform(991) simul(935) }
{ model(2220) cell(1177) simul(1124) }
{ care(1570) inform(1187) nurs(1089) }
{ general(901) number(790) one(736) }
{ method(984) reconstruct(947) comput(926) }
{ search(2224) databas(1162) retriev(909) }
{ featur(1941) imag(1645) propos(1176) }
{ howev(809) still(633) remain(590) }
{ studi(1410) differ(1259) use(1210) }
{ system(1050) medic(1026) inform(1018) }
{ visual(1396) interact(850) tool(830) }
{ compound(1573) activ(1297) structur(1058) }
{ studi(1119) effect(1106) posit(819) }
{ blood(1257) pressur(1144) flow(957) }
{ record(1888) medic(1808) patient(1693) }
{ health(3367) inform(1360) care(1135) }
{ monitor(1329) mobil(1314) devic(1160) }
{ ehr(2073) health(1662) electron(1139) }
{ state(1844) use(1261) util(961) }
{ research(1218) medic(880) student(794) }
{ patient(2837) hospit(1953) medic(668) }
{ model(2656) set(1616) predict(1553) }
{ data(2317) use(1299) case(1017) }
{ age(1611) year(1155) adult(843) }
{ medic(1828) order(1363) alert(1069) }
{ cost(1906) reduc(1198) effect(832) }
{ group(2977) signific(1463) compar(1072) }
{ sampl(1606) size(1419) use(1276) }
{ data(3008) multipl(1320) sourc(1022) }
{ intervent(3218) particip(2042) group(1664) }
{ activ(1138) subject(705) human(624) }
{ time(1939) patient(1703) rate(768) }
{ patient(1821) servic(1111) care(1106) }
{ can(981) present(881) function(850) }
{ analysi(2126) use(1163) compon(1037) }
{ health(1844) social(1437) communiti(874) }
{ structur(1116) can(940) graph(676) }
{ use(976) code(926) identifi(902) }
{ drug(1928) target(777) effect(648) }
{ result(1111) use(1088) new(759) }
{ decis(3086) make(1611) patient(1517) }
{ process(1125) use(805) approach(778) }
{ method(1969) cluster(1462) data(1082) }
{ detect(2391) sensit(1101) algorithm(908) }

Resumo

We report on the extraction procedures of low-contrast symptomatic hypodensity optimized for a computed tomography-based diagnosis. The specific application is brain imaging with enhanced perception of hypodense areas which are direct symptoms of acute ischemia. A standard low-contrast phantom, as commonly employed in dosimetry and imaging quality evaluation, was used to derive numeric criteria for assessing the extraction effectiveness. Our proposed procedure is based on multiscale analysis of the image data expanded over the frames of wavelets, curvelets or complex wavelets, followed by nonlinear approximation of the symptom signatures. Apparent subtle density changes in the phantom were evaluated using computational metrics and subjective ratings. We discuss the advantages and disadvantages of our proposed optimized hypodensity extraction procedures.

Resumo Limpo

report extract procedur lowcontrast symptomat hypodens optim comput tomographybas diagnosi specif applic brain imag enhanc percept hypodens area direct symptom acut ischemia standard lowcontrast phantom common employ dosimetri imag qualiti evalu use deriv numer criteria assess extract effect propos procedur base multiscal analysi imag data expand frame wavelet curvelet complex wavelet follow nonlinear approxim symptom signatur appar subtl densiti chang phantom evalu use comput metric subject rate discuss advantag disadvantag propos optim hypodens extract procedur

Resumos Similares

Comput Methods Programs Biomed - Correlation method versus enhanced modified moving average method for automatic detection of T-wave alternans. ( 0,697863157798853 )
Methods Inf Med - Automatic heart rate normalization for accurate energy expenditure estimation. An analysis of activities of daily living and heart rate features. ( 0,683842298506163 )
Med Biol Eng Comput - Classification of surface electromyographic signals by means of multifractal singularity spectrum. ( 0,678714874599576 )
IEEE J Biomed Health Inform - Single Trial Visual Evoked Potential Extraction using Partial Least Squares-based Approach. ( 0,668535877357199 )
Comput. Biol. Med. - Fractal and EMD based removal of baseline wander and powerline interference from ECG signals. ( 0,668359046632815 )
Comput Methods Programs Biomed - An approach based on wavelet analysis for feature extraction in the a-wave of the electroretinogram. ( 0,663621081938285 )
Comput. Biol. Med. - Radial basis function neural networks applied to efficient QRST cancellation in atrial fibrillation. ( 0,659311318558927 )
Comput Math Methods Med - Higher-order spectrum in understanding nonlinearity in EEG rhythms. ( 0,658680768711567 )
Comput Methods Programs Biomed - A comparative study between a simplified Kalman filter and Sliding Window Averaging for single trial dynamical estimation of event-related potentials. ( 0,652870910854838 )
Comput Math Methods Med - Analyzing EEG of quasi-brain-death based on dynamic sample entropy measures. ( 0,638895180013274 )
Comput Methods Programs Biomed - QRS detection using S-Transform and Shannon energy. ( 0,635644305873291 )
Comput. Biol. Med. - Alcoholism-related alterations in spectrum, coherence, and phase synchrony of topical electroencephalogram. ( 0,634307528771115 )
Comput Methods Programs Biomed - Epileptic seizure classification in EEG signals using second-order difference plot of intrinsic mode functions. ( 0,632944541782085 )
Comput Methods Programs Biomed - Detection of temporal changes in psychophysiological data using statistical process control methods. ( 0,632416603308558 )
Comput. Biol. Med. - Empirical mode decomposition based ECG enhancement and QRS detection. ( 0,631268098687496 )
J Med Syst - A wavelet transform based feature extraction and classification of cardiac disorder. ( 0,629156120462304 )
IEEE J Biomed Health Inform - Model based Estimation of Aortic and Mitral valves Opening and Closing Timings in Developing Human Fetuses. ( 0,628565708820556 )
IEEE J Biomed Health Inform - Analysis of the EMG Signal During Cyclic Movements Using Multicomponent AM-FM Decomposition. ( 0,628406661583847 )
Comput Math Methods Med - Independent component analysis of instantaneous power-based fMRI. ( 0,627464382739203 )
Comput Methods Programs Biomed - Application of spatio-temporal filtering to fetal electrocardiogram enhancement. ( 0,626722934770767 )
Comput Math Methods Med - Probabilistic source separation for robust fetal electrocardiography. ( 0,625304732843481 )
Comput. Biol. Med. - Binary symbolic dynamics classifies heart rate variability patterns linked to autonomic modulations. ( 0,623992763442354 )
Comput Methods Programs Biomed - Automatic moment segmentation and peak detection analysis of heart sound pattern via short-time modified Hilbert transform. ( 0,622967550327333 )
Med Biol Eng Comput - The application of Hilbert-Huang transform in the analysis of muscle fatigue during cyclic dynamic contractions. ( 0,621430526230407 )
IEEE Trans Image Process - Stable and Robust Sampling Strategies for Compressive Imaging. ( 0,619520893914065 )
J Med Syst - Determining the appropriate amount of anesthetic gas using DWT and EMD combined with neural network. ( 0,618545872264886 )
J Clin Monit Comput - The effect of skin incision on the electroencephalogram during general anesthesia maintained with propofol or desflurane. ( 0,617910361998586 )
J Clin Monit Comput - ECG myogenic artifacts during clonic seizures: a disturbing (and interesting) finding. ( 0,617160509384853 )
Med Biol Eng Comput - Optimizing bioimpedance measurement configuration for dual-gated nuclear medicine imaging: a sensitivity study. ( 0,61670451085045 )
Med Biol Eng Comput - Atrial activity estimation from atrial fibrillation ECGs by blind source extraction based on a conditional maximum likelihood approach. ( 0,616444556501107 )
IEEE Trans Image Process - Period coded phase shifting strategy for real-time 3-D structured light illumination. ( 0,616217560725291 )
Methods Inf Med - Long-term correlations and complexity analysis of the heart rate variability signal during sleep. Comparing normal and pathologic subjects. ( 0,616189776203191 )
Comput. Biol. Med. - Wavelet-based denoising method for real phonocardiography signal recorded by mobile devices in noisy environment. ( 0,615724747383246 )
Comput Methods Programs Biomed - QRS detection based on wavelet coefficients. ( 0,615051278805924 )
Med Biol Eng Comput - Remote sensing of patterns of cardiac activity on an ambulatory subject using millimeter-wave interferometry and statistical methods. ( 0,613862589673937 )
Comput. Biol. Med. - A fixed point algorithm for extracting the atrial activity in the frequency domain. ( 0,612572870744685 )
IEEE J Biomed Health Inform - EEG activity during movement planning encodes upcoming peak speed and acceleration and improves the accuracy in predicting hand kinematics. ( 0,606006029266275 )
Methods Inf Med - Linear and fractal heart rate dynamics during sleep at high altitude. Investigation with textile technology. ( 0,60583483500785 )
IEEE J Biomed Health Inform - Sleep and wake classification with actigraphy and respiratory effort using dynamic warping. ( 0,604965934145667 )
IEEE J Biomed Health Inform - Unsupervised eye blink artifact denoising of EEG data with modified multiscale sample entropy, Kurtosis, and wavelet-ICA. ( 0,604778348491989 )
Comput Methods Programs Biomed - Analysis of normal and epileptic seizure EEG signals using empirical mode decomposition. ( 0,604374853870141 )
Comput Methods Programs Biomed - Broadband noise suppression and feature identification of ECG waveforms using mathematical morphology and embedding theorem. ( 0,603680269252572 )
Comput Math Methods Med - An efficient frequency recognition method based on likelihood ratio test for SSVEP-based BCI. ( 0,603202133494912 )
Methods Inf Med - Time-frequency techniques in biomedical signal analysis. a tutorial review of similarities and differences. ( 0,60290852715864 )
Comput Methods Programs Biomed - Power line interference filtering on surface electromyography based on the stationary wavelet packet transform. ( 0,602402139067453 )
Med Biol Eng Comput - QRS subtraction for atrial electrograms: flat, linear and spline interpolations. ( 0,602279592521857 )
Med Biol Eng Comput - Characteristics of the swallowing sounds recorded in the ear, nose and on trachea. ( 0,601880201107926 )
Med Biol Eng Comput - Event synchronous adaptive filter based atrial activity estimation in single-lead atrial fibrillation electrocardiograms. ( 0,601829764764404 )
J Med Syst - Classification of arrhythmia using hybrid networks. ( 0,601532017375405 )
Methods Inf Med - Prediction of countershock success in patients using the autoregressive spectral estimation. ( 0,60114204082459 )
Med Biol Eng Comput - Reconstruction of gastric slow wave from finger photoplethysmographic signal using radial basis function neural network. ( 0,600933719145086 )
Comput. Biol. Med. - Current methods in electrocardiogram characterization. ( 0,600556328353175 )
Comput. Biol. Med. - ECG signal enhancement using S-Transform. ( 0,59878266550001 )
Comput Math Methods Med - PLI cancellation in ECG signal based on adaptive filter by using Wiener-Hopf equation for providing initial condition. ( 0,597716802619184 )
Neural Comput - Delay differential analysis of electroencephalographic data. ( 0,596918282286585 )
IEEE Trans Image Process - High capacity color barcodes: per channel data encoding via orientation modulation in elliptical dot arrays. ( 0,596608225730396 )
Comput Methods Programs Biomed - An R-peak detection method that uses an SVD filter and a search back system. ( 0,594888232888931 )
Comput Methods Programs Biomed - Automatic heart sound detection in pediatric patients without electrocardiogram reference via pseudo-affine Wigner-Ville distribution and Haar wavelet lifting. ( 0,594774092494924 )
Comput Methods Programs Biomed - Feature extraction of the first difference of EMG time series for EMG pattern recognition. ( 0,594618725379069 )
Comput. Biol. Med. - A novel electrocardiogram parameterization algorithm and its application in myocardial infarction detection. ( 0,593570248969095 )
IEEE J Biomed Health Inform - Experimental Evaluation of an Invasive Medical Instrument Based on a Displacement Measurement System. ( 0,593378646356504 )
J Med Syst - Analysis of infant cry through weighted linear prediction cepstral coefficients and Probabilistic Neural Network. ( 0,591566788936606 )
J Clin Monit Comput - A quantitative EEG method for detecting post clamp changes during carotid endarterectomy. ( 0,590802232715091 )
Comput Methods Programs Biomed - Biomedical time series clustering based on non-negative sparse coding and probabilistic topic model. ( 0,590450510609277 )
IEEE J Biomed Health Inform - A low-complexity ECG feature extraction algorithm for mobile healthcare applications. ( 0,588375340949734 )
IEEE J Biomed Health Inform - Optimization of heartbeat detection in fiber-optic unobtrusive measurements by using maximum a posteriori probability estimation. ( 0,588373847710441 )
J Med Syst - Analysis of spike waves in epilepsy using Hilbert-Huang transform. ( 0,587522686354033 )
Int J Neural Syst - Application of higher order cumulant features for cardiac health diagnosis using ECG signals. ( 0,58546616591433 )
J Med Syst - Optimization of noise in non-integrated instrumentation amplifier for the amplification of very low electrophysiological [corrected] signals. Case of electro cardio graphic signals (ECG). ( 0,585036075737444 )
Comput Methods Programs Biomed - Linear and nonlinear analysis of normal and CAD-affected heart rate signals. ( 0,584715313348216 )
Comput. Biol. Med. - Estimating cognitive workload using wavelet entropy-based features during an arithmetic task. ( 0,584362157874265 )
J Biomed Inform - A general framework for time series data mining based on event analysis: application to the medical domains of electroencephalography and stabilometry. ( 0,581523788281298 )
Comput. Biol. Med. - Uterine electromyogram database and processing function interface: An open standard analysis platform for electrohysterogram signals. ( 0,581133762757293 )
J Clin Monit Comput - Heart rate variability analysis during central hypovolemia using wavelet transformation. ( 0,580889580574259 )
Int J Neural Syst - Phase synchronization in brain networks derived from correlation between probabilities of recurrences in functional MRI data. ( 0,580557352392085 )
Comput Math Methods Med - Crossing fibers detection with an analytical high order tensor decomposition. ( 0,579186494865302 )
IEEE Trans Image Process - Kernel maximum autocorrelation factor and minimum noise fraction transformations. ( 0,578967953136826 )
Comput Math Methods Med - A novel automatic detection system for ECG arrhythmias using maximum margin clustering with immune evolutionary algorithm. ( 0,578307256866445 )
Int J Neural Syst - Detection of driving fatigue by using noncontact EMG and ECG signals measurement system. ( 0,578075659088077 )
Methods Inf Med - Auditory and Nociceptive Stimuli Responses in the Electroencephalogram. A Non-linear Measures and Time-frequency Representation Based Analysis. ( 0,577715103519362 )
Comput Methods Programs Biomed - Optimization of novel spectral estimator for fractionated electrogram analysis is helpful to discern atrial fibrillation type. ( 0,577233529417914 )
Methods Inf Med - Segmented Poincar? plot analysis for risk stratification in patients with dilated cardiomyopathy. ( 0,575377606488256 )
J Telemed Telecare - ECG telemonitoring during home-based cardiac rehabilitation in heart failure patients. ( 0,575191855522177 )
Med Biol Eng Comput - Adaptive motion artefact reduction in respiration and ECG signals for wearable healthcare monitoring systems. ( 0,574694202272342 )
Comput Math Methods Med - An automated optimal engagement and attention detection system using electrocardiogram. ( 0,574078966480517 )
Artif Intell Med - Comparative study of approximate entropy and sample entropy robustness to spikes. ( 0,573790354894715 )
Med Biol Eng Comput - Denoising performance of modified dual-tree complex wavelet transform for processing quadrature embolic Doppler signals. ( 0,573453447428397 )
J Med Syst - Automatic classification of heartbeats using wavelet neural network. ( 0,572913313749794 )
Int J Health Geogr - Hyperspectral hybrid method classification for detecting altered mucosa of the human larynx. ( 0,572813221500044 )
Comput Methods Programs Biomed - Fractional dynamical model for the generation of ECG like signals from filtered coupled Van-der Pol oscillators. ( 0,572117012854565 )
Comput Methods Programs Biomed - Phase space and power spectral approaches for EEG-based automatic sleep-wake classification in humans: a comparative study using short and standard epoch lengths. ( 0,57016286706008 )
Comput Math Methods Med - Fetal ECG extraction from abdominal signals: a review on suppression of fundamental power line interference component and its harmonics. ( 0,56992996170704 )
Comput Math Methods Med - A wavelet transform based method to determine depth of anesthesia to prevent awareness during general anesthesia. ( 0,569895097268127 )
J Clin Monit Comput - Multi-scale sample entropy of electroencephalography during sevoflurane anesthesia. ( 0,569247247956094 )
Med Biol Eng Comput - The role of hand motion connectivity in the performance of laparoscopic procedures on a virtual reality simulator. ( 0,568917159753069 )
IEEE J Biomed Health Inform - Automated detection of perturbed cardiac physiology during oral food allergen challenge in children. ( 0,567874609822954 )
Comput. Biol. Med. - Mitigating the effect of non-stationarity in spectral analysis-an application to neonate heart rate analysis. ( 0,566162080209267 )
J Med Syst - Adaptive network-based fuzzy inference system for assessment of lower limb peripheral vascular occlusive disease. ( 0,566044561325736 )
Comput Methods Programs Biomed - A model-based method for computation of correlation dimension, Lyapunov exponents and synchronization from depth-EEG signals. ( 0,566020500007668 )
Comput Math Methods Med - A robust algorithm for optimisation and customisation of fractal dimensions of time series modified by nonlinearly scaling their time derivatives: mathematical theory and practical applications. ( 0,565492676204379 )