Int J Comput Assist Radiol Surg - A cost-sensitive extension of AdaBoost with markov random field priors for automated segmentation of breast tumors in ultrasonic images.

Tópicos

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

Resumo

RPOSE: A cost-sensitive extension of AdaBoost based on Markov random field (MRF) priors was developed to train an ensemble segmentation process which can avoid irregular shape, isolated points and holes, leading to lower error rate. The method was applied to breast tumor segmentation in ultrasonic images.METHODS: A cost function was introduced into the AdaBoost algorithm that penalizes dissimilar adjacent labels in MRF regularization. The extended AdaBoost algorithm generates a series of weak segmentation processes by sequentially selecting a process whose error rate weighted by the cost is minimum. The method was tested by generation of an ensemble segmentation process for breast tumors in ultrasonic images. This was followed by a active contour to refine the extracted tumor boundary.RESULTS: The segmentation performance was evaluated by tenfold cross validation test, where 300 carcinomas, 50 fibroadenomas, and 50 cysts were used. The experimental results revealed that the error rate of the proposed ensemble segmentation was two-thirds the error rate of the segmentation trained by AdaBoost without MRF. By combining the ensemble segmentation with a geodesic active contour, the average Jaccard index between the extracted tumors and the manually segmented true regions was 93.41%, significantly higher than the conventional segmentation process.CONCLUSION: A cost-sensitive extension of AdaBoost based on MRF priors provides an efficient and accurate means for the segmentation of tumors in breast ultrasound images.

Resumo Limpo

rpose costsensit extens adaboost base markov random field mrf prior develop train ensembl segment process can avoid irregular shape isol point hole lead lower error rate method appli breast tumor segment ultrason imagesmethod cost function introduc adaboost algorithm penal dissimilar adjac label mrf regular extend adaboost algorithm generat seri weak segment process sequenti select process whose error rate weight cost minimum method test generat ensembl segment process breast tumor ultrason imag follow activ contour refin extract tumor boundaryresult segment perform evalu tenfold cross valid test carcinoma fibroadenoma cyst use experiment result reveal error rate propos ensembl segment twothird error rate segment train adaboost without mrf combin ensembl segment geodes activ contour averag jaccard index extract tumor manual segment true region signific higher convent segment processconclus costsensit extens adaboost base mrf prior provid effici accur mean segment tumor breast ultrasound imag

Resumos Similares

Comput. Biol. Med. - Accurate tumor localization and tracking in radiation therapy using wireless body sensor networks. ( 0,854052480149889 )
Comput. Biol. Med. - Lung nodule segmentation and recognition using SVM classifier and active contour modeling: a complete intelligent system. ( 0,82238210059256 )
Comput Methods Programs Biomed - A novel method for pulmonary embolism detection in CTA images. ( 0,819480484652985 )
Comput. Biol. Med. - Refinement of lung nodule candidates based on local geometric shape analysis and Laplacian of Gaussian kernels. ( 0,817987893821161 )
Int J Comput Assist Radiol Surg - 3D variational brain tumor segmentation using Dirichlet priors on a clustered feature set. ( 0,806946801552356 )
Comput Math Methods Med - A hybrid method for pancreas extraction from CT image based on level set methods. ( 0,806333237171876 )
Int J Comput Assist Radiol Surg - Liver segmentation for contrast-enhanced MR images using partitioned probabilistic model. ( 0,805472796109467 )
BMC Med Inform Decis Mak - Automatic segmentation of meningioma from non-contrasted brain MRI integrating fuzzy clustering and region growing. ( 0,80280771149391 )
Int J Comput Assist Radiol Surg - Automatic left ventricle segmentation in volumetric SPECT data set by variational level set. ( 0,802081810849092 )
Comput Methods Programs Biomed - A survey of prostate segmentation methodologies in ultrasound, magnetic resonance and computed tomography images. ( 0,801710085850111 )
IEEE Trans Pattern Anal Mach Intell - Paired Regions for Shadow Detection and Removal. ( 0,801229472019721 )
Comput Math Methods Med - A hybrid approach of using symmetry technique for brain tumor segmentation. ( 0,799841327219458 )
Comput Math Methods Med - Computerized segmentation and characterization of breast lesions in dynamic contrast-enhanced MR images using fuzzy c-means clustering and snake algorithm. ( 0,797907642478511 )
Comput Math Methods Med - Segmentation of brain MRI using SOM-FCM-based method and 3D statistical descriptors. ( 0,79734139463742 )
Comput Math Methods Med - Potential lung nodules identification for characterization by variable multistep threshold and shape indices from CT images. ( 0,79678999681284 )
Comput Methods Programs Biomed - Segmentation of pituitary adenoma: a graph-based method vs. a balloon inflation method. ( 0,793370697971817 )
Comput Methods Programs Biomed - Technique for preprocessing of digital mammogram. ( 0,791891387695523 )
Comput. Biol. Med. - A review on segmentation of positron emission tomography images. ( 0,791816765196964 )
Med Biol Eng Comput - A fully automated human knee 3D MRI bone segmentation using the ray casting technique. ( 0,790125980727479 )
IEEE Trans Image Process - Incorporating anatomical side information into PET reconstruction using nonlocal regularization. ( 0,789949886566765 )
Med Biol Eng Comput - Automatic segmentation of carotid B-mode images using fuzzy classification. ( 0,787836908333937 )
Int J Comput Assist Radiol Surg - Automated aorta segmentation in low-dose chest CT images. ( 0,786602915566383 )
Int J Comput Assist Radiol Surg - Vertebra identification using template matching modelmp and K-means clustering. ( 0,783991899358582 )
Comput. Biol. Med. - 3D geometric split-merge segmentation of brain MRI datasets. ( 0,783253889930063 )
Int J Comput Assist Radiol Surg - Automatic 3D segmentation of individual facial muscles using unlabeled prior information. ( 0,781886704135823 )
Int J Comput Assist Radiol Surg - A two-stage rule-constrained seedless region growing approach for mandibular body segmentation in MRI. ( 0,780980163288541 )
Comput. Biol. Med. - Automatic brain extraction methods for T1 magnetic resonance images using region labeling and morphological operations. ( 0,77973585370903 )
Int J Comput Assist Radiol Surg - Automated liver lesion detection in CT images based on multi-level geometric features. ( 0,779283111385562 )
IEEE Trans Image Process - Overlapping cell nuclei segmentation using a spatially adaptive active physical model. ( 0,778555614690954 )
Comput Methods Programs Biomed - MARGA: multispectral adaptive region growing algorithm for brain extraction on axial MRI. ( 0,778496022571028 )
IEEE J Biomed Health Inform - A spatiotemporal-based scheme for efficient registration-based segmentation of thoracic 4-D MRI. ( 0,77837922512522 )
Comput. Biol. Med. - Fully automated tumor segmentation based on improved fuzzy connectedness algorithm in brain MR images. ( 0,778203154320556 )
Med Biol Eng Comput - Automatic segmentation of the fetal cerebellum on ultrasound volumes, using a 3D statistical shape model. ( 0,775695483526897 )
Comput Math Methods Med - Multiple active contours guided by differential evolution for medical image segmentation. ( 0,773433276058727 )
Comput. Biol. Med. - Nearly automated motion artifacts correction between multi breath-hold short-axis and long-axis cine CMR images. ( 0,772588828218337 )
Int J Comput Assist Radiol Surg - GPU accelerated segmentation and centerline extraction of tubular structures from medical images. ( 0,772588828218337 )
Int J Comput Assist Radiol Surg - Voxel classification and graph cuts for automated segmentation of pathological periprosthetic hip anatomy. ( 0,772532450597092 )
Comput. Biol. Med. - Phase-based probabilistic active contour for nerve detection in ultrasound images for regional anesthesia. ( 0,771738222458262 )
Med Biol Eng Comput - Off-line determination of the optimal number of iterations of the robust anisotropic diffusion filter applied to denoising of brain MR images. ( 0,76849180538213 )
Int J Comput Assist Radiol Surg - Fetal brain volumetry through MRI volumetric reconstruction and segmentation. ( 0,767807156778405 )
Int J Comput Assist Radiol Surg - A computerized MRI biomarker quantification scheme for a canine model of Duchenne muscular dystrophy. ( 0,767774218712109 )
Comput. Biol. Med. - Colorization of CT images to improve tissue contrast for tumor segmentation. ( 0,767065653467956 )
Int J Comput Assist Radiol Surg - Segmentation of iodine brachytherapy implants in fluoroscopy. ( 0,766707087404989 )
Int J Comput Assist Radiol Surg - Computer-aided nidus segmentation and angiographic characterization of arteriovenous malformations. ( 0,766481199164442 )
Comput Methods Programs Biomed - pSnakes: a new radial active contour model and its application in the segmentation of the left ventricle from echocardiographic images. ( 0,765075534096827 )
Comput. Biol. Med. - Retinal vessel segmentation using a multi-scale medialness function. ( 0,76491613112395 )
Comput Methods Programs Biomed - Automatic model-based tracing algorithm for vessel segmentation and diameter estimation. ( 0,764611051194445 )
Comput Methods Programs Biomed - Automatic segmentation of corpus callosum using Gaussian mixture modeling and Fuzzy C means methods. ( 0,763913464685532 )
Int J Comput Assist Radiol Surg - Carotid vasculature modeling from patient CT angiography studies for interventional procedures simulation. ( 0,760268776814544 )
Comput Methods Programs Biomed - Segmentation of ultrasound images of the carotid using RANSAC and cubic splines. ( 0,759291601121391 )
Int J Comput Assist Radiol Surg - Ameliorating slice gaps in multislice magnetic resonance images: an interpolation scheme. ( 0,759200368299337 )
Comput Methods Programs Biomed - Image registration and atlas-based segmentation of cardiac outflow velocity profiles. ( 0,758014642480443 )
Comput. Biol. Med. - A level-set based approach for anterior teeth segmentation in cone beam computed tomography images. ( 0,757605805842925 )
Med Biol Eng Comput - Automatic segmentation of brain MR images using an adaptive balloon snake model with fuzzy classification. ( 0,757100202325797 )
Comput. Biol. Med. - Segmentation of anterior cruciate ligament in knee MR images using graph cuts with patient-specific shape constraints and label refinement. ( 0,756472071805695 )
IEEE J Biomed Health Inform - A comparison of US- versus MR-based 3-D Prostate Shapes Using Radial Basis Function Interpolation and Statistical Shape Models. ( 0,756157774208517 )
Comput Math Methods Med - A new multistage medical segmentation method based on superpixel and fuzzy clustering. ( 0,754665695204885 )
Int J Comput Assist Radiol Surg - Extreme leg motion analysis of professional ballet dancers via MRI segmentation of multiple leg postures. ( 0,754080963277168 )
IEEE J Biomed Health Inform - Segmentation of the blood vessels and optic disk in retinal images. ( 0,753724439165187 )
IEEE J Biomed Health Inform - Segmentation of tumor and edema along with healthy tissues of brain using wavelets and neural networks. ( 0,753185121006935 )
J Med Syst - Automated bleeding detection in capsule endoscopy videos using statistical features and region growing. ( 0,75198428177366 )
Comput. Biol. Med. - Reducing redundancy in wireless capsule endoscopy videos. ( 0,751531918226483 )
Int J Comput Assist Radiol Surg - Left ventricular myocardium segmentation on delayed phase of multi-detector row computed tomography. ( 0,751436225825418 )
Int J Comput Assist Radiol Surg - Nasopharyngeal carcinoma segmentation using a region growing technique. ( 0,751376396017298 )
Int J Comput Assist Radiol Surg - Automatic breast parenchymal density classification integrated into a CADe system. ( 0,751312008311128 )
Comput Math Methods Med - Multimodal brain-tumor segmentation based on Dirichlet process mixture model with anisotropic diffusion and Markov random field prior. ( 0,751070741999142 )
Comput. Biol. Med. - Optic disc segmentation using the sliding band filter. ( 0,750729757226652 )
Comput Methods Programs Biomed - Cerebral arterial inflow assessment with 18F-FDG PET: methodology and feasibility. ( 0,749594579193903 )
Comput Methods Programs Biomed - Lung tumor segmentation in PET images using graph cuts. ( 0,749354837416959 )
Int J Comput Assist Radiol Surg - Automatic lung segmentation method for MRI-based lung perfusion studies of patients with chronic obstructive pulmonary disease. ( 0,749013834060318 )
Comput. Biol. Med. - Fully automated liver segmentation from SPIR image series. ( 0,748350734135542 )
Comput Methods Programs Biomed - A review of atlas-based segmentation for magnetic resonance brain images. ( 0,74773963021626 )
Comput Methods Programs Biomed - Geometrical methods for level set based abdominal aortic aneurysm thrombus and outer wall 2D image segmentation. ( 0,746298793042957 )
Int J Comput Assist Radiol Surg - Acetabular cartilage segmentation in CT arthrography based on a bone-normalized probabilistic atlas. ( 0,745955558246414 )
Methods Inf Med - ML segmentation strategies for object interference compensation in FDG-PET lesion quantification. ( 0,745915433693739 )
Comput. Biol. Med. - An automated lung segmentation approach using bidirectional chain codes to improve nodule detection accuracy. ( 0,744710733065577 )
Int J Comput Assist Radiol Surg - Local noise estimation in low-dose chest CT images. ( 0,744250345172942 )
Int J Comput Assist Radiol Surg - Delineation of blood vessels in pediatric retinal images using decision trees-based ensemble classification. ( 0,7432539737981 )
Artif Intell Med - A segmentation framework for abdominal organs from CT scans. ( 0,742527021647171 )
Comput Methods Programs Biomed - Obtaining optic disc center and pixel region by automatic thresholding methods on morphologically processed fundus images. ( 0,741906911833015 )
Int J Comput Assist Radiol Surg - Automatic segmentation of the nasal cavity and paranasal sinuses from cone-beam CT images. ( 0,741631208497894 )
Comput Math Methods Med - Diabetic retinopathy grading by digital curvelet transform. ( 0,741219752578226 )
Comput. Biol. Med. - Automated retinal layers segmentation in SD-OCT images using dual-gradient and spatial correlation smoothness constraint. ( 0,740735495440313 )
Int J Comput Assist Radiol Surg - Spatially adaptive active contours: a semi-automatic tumor segmentation framework. ( 0,74055305239721 )
Med Biol Eng Comput - Automatic detection and segmentation of bovine corpora lutea in ultrasonographic ovarian images using genetic programming and rotation invariant local binary patterns. ( 0,738887030453514 )
Int J Comput Assist Radiol Surg - Expert-driven label fusion in multi-atlas-based segmentation of the prostate using weighted atlases. ( 0,738096620386156 )
Comput Methods Programs Biomed - Enhancing classification accuracy utilizing globules and dots features in digital dermoscopy. ( 0,737409647447287 )
Methods Inf Med - A fast, automatic segmentation algorithm for locating and delineating touching cell boundaries in imaged histopathology. ( 0,736550521259413 )
Med Biol Eng Comput - Detection of the intima and media layer thickness of ultrasound common carotid artery image using efficient active contour segmentation technique. ( 0,736477476113219 )
Comput Math Methods Med - Bayesian method with spatial constraint for retinal vessel segmentation. ( 0,735673232489306 )
Int J Comput Assist Radiol Surg - Automated segmentation of basal ganglia and deep brain structures in MRI of Parkinson's disease. ( 0,735521287067211 )
Comput Math Methods Med - Esophagus segmentation from 3D CT data using skeleton prior-based graph cut. ( 0,734685984801185 )
Comput Methods Programs Biomed - Carotid artery image segmentation using modified spatial fuzzy c-means and ensemble clustering. ( 0,734654838656542 )
Methods Inf Med - Automatic correction of gaps in cerebrovascular segmentations extracted from 3D time-of-flight MRA datasets. ( 0,733713569396332 )
J Med Syst - Brain MR image segmentation with spatial constrained K-mean algorithm and dual-tree complex wavelet transform. ( 0,732915867383614 )
IEEE Trans Image Process - Automatic craniofacial structure detection on cephalometric images. ( 0,732106267707987 )
Comput Math Methods Med - Detection of pulmonary nodules in CT images based on fuzzy integrated active contour model and hybrid parametric mixture model. ( 0,732081156868464 )
J Med Syst - Automated detection of dark and bright lesions in retinal images for early detection of diabetic retinopathy. ( 0,731014865547113 )
IEEE Trans Vis Comput Graph - Supervised Manifold Distance Segmentation. ( 0,730833052948907 )
Comput. Biol. Med. - Gallbladder shape extraction from ultrasound images using active contour models. ( 0,730174945308669 )