Comput. Biol. Med. - Boundary detection in carotid ultrasound images using dynamic programming and a directional Haar-like filter.

Tópicos

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

Resumo

The intima-media thickness (IMT) of the carotid artery, obtained from B-mode ultrasound images, has recently been proposed as one of the most useful indices of atherosclerosis and can also be used to predict major cardiovascular events. Ultrasonic measurements of the IMT are conventionally obtained by time-consuming manual tracing of the interfaces between tissue layers. We propose a computerized method to detect the boundary of the intima-media complex using a directional Haar-like filter that can account for the slope of the boundary in an image. The directional Haar-like filter extracts a directional boundary feature as an image feature in the region of interest, which is used to compute a cost function. A cost function includes not only the directional Haar-like filtering value but also the geometric continuity that is computed for every pixel in the region of interest. The optimal boundary pixels are detected by using a dynamic programming approach that searches for the pixel that minimizes the cost function in each column of the image. We compared the performance of the proposed method with that of manual methods performed by two radiologists. The results showed that our approach produces very similar results to those based on manual tracing, and there was no statistically significant difference between the IMT measurements segmented manually and those analyzed using our method.

Resumo Limpo

intimamedia thick imt carotid arteri obtain bmode ultrasound imag recent propos one use indic atherosclerosi can also use predict major cardiovascular event ultrason measur imt convent obtain timeconsum manual trace interfac tissu layer propos computer method detect boundari intimamedia complex use direct haarlik filter can account slope boundari imag direct haarlik filter extract direct boundari featur imag featur region interest use comput cost function cost function includ direct haarlik filter valu also geometr continu comput everi pixel region interest optim boundari pixel detect use dynam program approach search pixel minim cost function column imag compar perform propos method manual method perform two radiologist result show approach produc similar result base manual trace statist signific differ imt measur segment manual analyz use method

Resumos Similares

IEEE Trans Image Process - Automatic craniofacial structure detection on cephalometric images. ( 0,873075695216558 )
Int J Comput Assist Radiol Surg - Left ventricular myocardium segmentation on delayed phase of multi-detector row computed tomography. ( 0,837521098242746 )
IEEE Trans Image Process - Robust automatic rodent brain extraction using 3-D pulse-coupled neural networks (PCNN). ( 0,831589256976662 )
J Clin Monit Comput - A comparison of two algorithms for automated stone detection in clinical B-mode ultrasound images of the abdomen. ( 0,83004474418497 )
IEEE J Biomed Health Inform - Adaptive shape prior constrained level sets for bladder MR image segmentation. ( 0,830025838067136 )
J Med Syst - Computer assisted diagnostic system in tumor radiography. ( 0,825003491300908 )
Int J Comput Assist Radiol Surg - GPU accelerated segmentation and centerline extraction of tubular structures from medical images. ( 0,821581286370608 )
Comput Math Methods Med - A hybrid method for pancreas extraction from CT image based on level set methods. ( 0,81880196678525 )
Comput. Biol. Med. - Nearly automated motion artifacts correction between multi breath-hold short-axis and long-axis cine CMR images. ( 0,817004231850438 )
Int J Comput Assist Radiol Surg - Patch-based label fusion segmentation of brainstem structures with dual-contrast MRI for Parkinson's disease. ( 0,816766565131017 )
Comput Math Methods Med - Segmentation of brain MRI using SOM-FCM-based method and 3D statistical descriptors. ( 0,816652302378219 )
J Digit Imaging - Dual-pass feature extraction on human vessel images. ( 0,8161325578575 )
Comput. Biol. Med. - Phase-based probabilistic active contour for nerve detection in ultrasound images for regional anesthesia. ( 0,812096067285908 )
Int J Comput Assist Radiol Surg - Carotid vasculature modeling from patient CT angiography studies for interventional procedures simulation. ( 0,807059702988544 )
Int J Comput Assist Radiol Surg - Automatic 3D segmentation of individual facial muscles using unlabeled prior information. ( 0,79813146978842 )
Int J Comput Assist Radiol Surg - Nasopharyngeal carcinoma segmentation using a region growing technique. ( 0,797111969131821 )
Int J Comput Assist Radiol Surg - Vertebra identification using template matching modelmp and K-means clustering. ( 0,796554862792855 )
J Med Syst - Morphological multiscale enhancement, fuzzy filter and watershed for vascular tree extraction in angiogram. ( 0,792295979203686 )
Comput Math Methods Med - A new multistage medical segmentation method based on superpixel and fuzzy clustering. ( 0,78988184418444 )
IEEE J Biomed Health Inform - A spatiotemporal-based scheme for efficient registration-based segmentation of thoracic 4-D MRI. ( 0,789735507586717 )
Comput Methods Programs Biomed - A novel method for pulmonary embolism detection in CTA images. ( 0,789455648292234 )
Int J Comput Assist Radiol Surg - Brain tumor detection and segmentation in a CRF (conditional random fields) framework with pixel-pairwise affinity and superpixel-level features. ( 0,788828951546478 )
Int J Comput Assist Radiol Surg - Automatic segmentation of the nasal cavity and paranasal sinuses from cone-beam CT images. ( 0,788524571178994 )
J Med Syst - Brain MR image segmentation with spatial constrained K-mean algorithm and dual-tree complex wavelet transform. ( 0,787786477044597 )
Comput. Biol. Med. - Automated retinal layers segmentation in SD-OCT images using dual-gradient and spatial correlation smoothness constraint. ( 0,786620452463729 )
Int J Comput Assist Radiol Surg - Usability of unbiased nonlocal means for de-noising intraoperative magnetic resonance images in neurosurgery. ( 0,786607164978212 )
Comput. Biol. Med. - Unsupervised tumour segmentation in PET using local and global intensity-fitting active surface and alpha matting. ( 0,781028957108237 )
Comput. Biol. Med. - A level-set based approach for anterior teeth segmentation in cone beam computed tomography images. ( 0,779919628448802 )
Comput. Biol. Med. - 3D geometric split-merge segmentation of brain MRI datasets. ( 0,778398568619901 )
Comput Methods Programs Biomed - MARGA: multispectral adaptive region growing algorithm for brain extraction on axial MRI. ( 0,776758223984436 )
Comput. Biol. Med. - Refinement of lung nodule candidates based on local geometric shape analysis and Laplacian of Gaussian kernels. ( 0,775617001901364 )
Comput. Biol. Med. - Lung nodule segmentation and recognition using SVM classifier and active contour modeling: a complete intelligent system. ( 0,775448889115604 )
Comput Math Methods Med - A hybrid approach of using symmetry technique for brain tumor segmentation. ( 0,774876159318355 )
Med Biol Eng Comput - A fully automated human knee 3D MRI bone segmentation using the ray casting technique. ( 0,773507136624183 )
Int J Comput Assist Radiol Surg - Acetabular cartilage segmentation in CT arthrography based on a bone-normalized probabilistic atlas. ( 0,772999879890697 )
Int J Comput Assist Radiol Surg - Automated segmentation of basal ganglia and deep brain structures in MRI of Parkinson's disease. ( 0,76997847466606 )
IEEE Trans Image Process - 3D superalloy grain segmentation using a multichannel edge-weighted centroidal Voronoi tessellation algorithm. ( 0,769513298899249 )
Comput Methods Programs Biomed - pSnakes: a new radial active contour model and its application in the segmentation of the left ventricle from echocardiographic images. ( 0,769049224096422 )
IEEE Trans Image Process - Overlapping cell nuclei segmentation using a spatially adaptive active physical model. ( 0,764787450065129 )
Int J Comput Assist Radiol Surg - Liver segmentation for contrast-enhanced MR images using partitioned probabilistic model. ( 0,764168039859501 )
Int J Comput Assist Radiol Surg - 3D ultrasound centerline tracking of abdominal vessels for?endovascular navigation. ( 0,75983187990129 )
Comput Math Methods Med - Diabetic retinopathy grading by digital curvelet transform. ( 0,759182886691742 )
Comput Methods Programs Biomed - Image registration and atlas-based segmentation of cardiac outflow velocity profiles. ( 0,758177594020027 )
Comput. Biol. Med. - Automatic brain extraction methods for T1 magnetic resonance images using region labeling and morphological operations. ( 0,758032057787381 )
Med Biol Eng Comput - Automatic segmentation of the fetal cerebellum on ultrasound volumes, using a 3D statistical shape model. ( 0,756625414083617 )
Comput Math Methods Med - Multimodal brain-tumor segmentation based on Dirichlet process mixture model with anisotropic diffusion and Markov random field prior. ( 0,756491741662161 )
Int J Comput Assist Radiol Surg - Ameliorating slice gaps in multislice magnetic resonance images: an interpolation scheme. ( 0,755904257603072 )
Int J Comput Assist Radiol Surg - A 3D active model framework for segmentation of proximal femur in MR images. ( 0,755870418373468 )
IEEE Trans Image Process - Repairing bad co-segmentation using its quality evaluation and segment propagation. ( 0,755349667076123 )
J Med Syst - 3-D surface rendering of myocardial SPECT images segmented by level set technique. ( 0,75522886272362 )
Comput. Biol. Med. - Retinal vessel segmentation using a multi-scale medialness function. ( 0,755063106980474 )
Comput Methods Programs Biomed - Carotid artery image segmentation using modified spatial fuzzy c-means and ensemble clustering. ( 0,754958422998424 )
Int J Comput Assist Radiol Surg - 3D variational brain tumor segmentation using Dirichlet priors on a clustered feature set. ( 0,75445011805922 )
Comput Methods Programs Biomed - A review of atlas-based segmentation for magnetic resonance brain images. ( 0,753407987501736 )
Int J Comput Assist Radiol Surg - Automated aorta segmentation in low-dose chest CT images. ( 0,75340210108476 )
Int J Comput Assist Radiol Surg - Fetal brain volumetry through MRI volumetric reconstruction and segmentation. ( 0,752580201257012 )
Comput. Biol. Med. - Reducing redundancy in wireless capsule endoscopy videos. ( 0,750888568583436 )
Comput. Biol. Med. - Segmentation of female pelvic organs in axial magnetic resonance images using coupled geometric deformable models. ( 0,7507934448357 )
IEEE J Biomed Health Inform - Accurate segmentation of partially overlapping cervical cells based on dynamic sparse contour searching and GVF snake model. ( 0,749457050461557 )
Comput Math Methods Med - Segmentation of choroidal boundary in enhanced depth imaging OCTs using a multiresolution texture based modeling in graph cuts. ( 0,749188492839455 )
Med Biol Eng Comput - Multiplane spectroscopic whole-body photoacoustic imaging of small animals in vivo. ( 0,748619295357559 )
Int J Comput Assist Radiol Surg - Spatially adaptive active contours: a semi-automatic tumor segmentation framework. ( 0,747504436972713 )
IEEE Trans Image Process - Shadow removal using bilateral filtering. ( 0,74657028715131 )
Comput Methods Programs Biomed - A survey of prostate segmentation methodologies in ultrasound, magnetic resonance and computed tomography images. ( 0,746274973766358 )
Comput Math Methods Med - Automatic mapping extraction from multiecho T2-star weighted magnetic resonance images for improving morphological evaluations in human brain. ( 0,74573727848853 )
Int J Comput Assist Radiol Surg - Voxel classification and graph cuts for automated segmentation of pathological periprosthetic hip anatomy. ( 0,745506062079081 )
Comput Math Methods Med - Multiple active contours guided by differential evolution for medical image segmentation. ( 0,745270833561649 )
Comput. Biol. Med. - Fully automatic brain extraction algorithm for axial T2-weighted magnetic resonance images. ( 0,744946717084071 )
IEEE Trans Image Process - Incorporating anatomical side information into PET reconstruction using nonlocal regularization. ( 0,744354962323266 )
Comput Methods Programs Biomed - Teeth segmentation of dental periapical radiographs based on local singularity analysis. ( 0,744337117711617 )
IEEE Trans Image Process - An edge embedded marker-based watershed algorithm for high spatial resolution remote sensing image segmentation. ( 0,743653488978263 )
IEEE J Biomed Health Inform - Segmentation of tumor and edema along with healthy tissues of brain using wavelets and neural networks. ( 0,7427094879497 )
Int J Comput Assist Radiol Surg - Extreme leg motion analysis of professional ballet dancers via MRI segmentation of multiple leg postures. ( 0,742356883573039 )
Comput Methods Programs Biomed - An improved method of automatic colon segmentation for virtual colon unfolding. ( 0,742257378755248 )
BMC Med Inform Decis Mak - Automatic segmentation of meningioma from non-contrasted brain MRI integrating fuzzy clustering and region growing. ( 0,741937829403134 )
J Med Syst - Automated bleeding detection in capsule endoscopy videos using statistical features and region growing. ( 0,741921962998304 )
Comput Methods Programs Biomed - Segmentation of pituitary adenoma: a graph-based method vs. a balloon inflation method. ( 0,741439846121242 )
Int J Comput Assist Radiol Surg - Automatic left ventricle segmentation in volumetric SPECT data set by variational level set. ( 0,739982469578957 )
IEEE Trans Image Process - Interpolation-dependent image downsampling. ( 0,739759636730554 )
Comput. Biol. Med. - Prioritization of brain MRI volumes using medical image perception model and tumor region segmentation. ( 0,738541467618756 )
IEEE Trans Image Process - Adaptive Perona-Malik model based on the variable exponent for image denoising. ( 0,737873935836593 )
Comput Methods Programs Biomed - Segmentation of ultrasound images of the carotid using RANSAC and cubic splines. ( 0,737322020774448 )
Int J Comput Assist Radiol Surg - Automatic lung segmentation method for MRI-based lung perfusion studies of patients with chronic obstructive pulmonary disease. ( 0,736036372367364 )
Artif Intell Med - A segmentation framework for abdominal organs from CT scans. ( 0,735664672002437 )
Comput Math Methods Med - Embryonic heart morphogenesis from confocal microscopy imaging and automatic segmentation. ( 0,734812061136833 )
IEEE Trans Image Process - Adaptive image registration via hierarchical Voronoi subdivision. ( 0,734751718524328 )
Med Biol Eng Comput - Automatic segmentation of carotid B-mode images using fuzzy classification. ( 0,731883258576453 )
IEEE J Biomed Health Inform - Segmentation of the blood vessels and optic disk in retinal images. ( 0,731497793095153 )
J Digit Imaging - Anatomically anchored template-based level set segmentation: application to quadriceps muscles in MR images from the Osteoarthritis Initiative. ( 0,730502249775411 )
Comput Methods Programs Biomed - Automatic segmentation of corpus callosum using Gaussian mixture modeling and Fuzzy C means methods. ( 0,730446721920609 )
Comput. Biol. Med. - Automatic measurements of arterial input and venous output functions on cerebral computed tomography perfusion images: a preliminary study. ( 0,72841529478093 )
Comput Math Methods Med - Unsupervised cardiac image segmentation via multiswarm active contours with a shape prior. ( 0,727452092311952 )
Int J Comput Assist Radiol Surg - Automated liver lesion detection in CT images based on multi-level geometric features. ( 0,727327634901027 )
Int J Comput Assist Radiol Surg - Delineation of blood vessels in pediatric retinal images using decision trees-based ensemble classification. ( 0,726076929547347 )
J Med Syst - Automated detection of dark and bright lesions in retinal images for early detection of diabetic retinopathy. ( 0,724625731645913 )
Med Biol Eng Comput - Automatic segmentation of brain MR images using an adaptive balloon snake model with fuzzy classification. ( 0,724330441915226 )
Int J Comput Assist Radiol Surg - Computer-aided nidus segmentation and angiographic characterization of arteriovenous malformations. ( 0,723788471845137 )
Comput. Biol. Med. - Estimating contrast agent motion from ultrasound images using an anisotropic diffusion-based optical flow technique. ( 0,723760573992882 )
Comput. Biol. Med. - Accurate tumor localization and tracking in radiation therapy using wireless body sensor networks. ( 0,72297736304555 )
Comput Methods Programs Biomed - Automatic selection of arterial input function on dynamic contrast-enhanced MR images. ( 0,722404256668056 )