Int J Comput Assist Radiol Surg - 3D variational brain tumor segmentation using Dirichlet priors on a clustered feature set.

Tópicos

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

RPOSE: Brain tumor segmentation is a required step before any radiation treatment or surgery. When performed manually, segmentation is time consuming and prone to human errors. Therefore, there have been significant efforts to automate the process. But, automatic tumor segmentation from MRI data is a particularly challenging task. Tumors have a large diversity in shape and appearance with intensities overlapping the normal brain tissues. In addition, an expanding tumor can also deflect and deform nearby tissue. In our work, we propose an automatic brain tumor segmentation method that addresses these last two difficult problems.METHODS: We use the available MRI modalities (T1, T1c, T2) and their texture characteristics to construct a multidimensional feature set. Then, we extract clusters which provide a compact representation of the essential information in these features. The main idea in this work is to incorporate these clustered features into the 3D variational segmentation framework. In contrast to previous variational approaches, we propose a segmentation method that evolves the contour in a supervised fashion. The segmentation boundary is driven by the learned region statistics in the cluster space. We incorporate prior knowledge about the normal brain tissue appearance during the estimation of these region statistics. In particular, we use a Dirichlet prior that discourages the clusters from the normal brain region to be in the tumor region. This leads to a better disambiguation of the tumor from brain tissue.RESULTS: We evaluated the performance of our automatic segmentation method on 15 real MRI scans of brain tumor patients, with tumors that are inhomogeneous in appearance, small in size and in proximity to the major structures in the brain. Validation with the expert segmentation labels yielded encouraging results: Jaccard (58%), Precision (81%), Recall (67%), Hausdorff distance (24?mm).CONCLUSIONS: Using priors on the brain/tumor appearance, our proposed automatic 3D variational segmentation method was able to better disambiguate the tumor from the surrounding tissue.

Resumo Limpo

rpose brain tumor segment requir step radiat treatment surgeri perform manual segment time consum prone human error therefor signific effort autom process automat tumor segment mri data particular challeng task tumor larg divers shape appear intens overlap normal brain tissu addit expand tumor can also deflect deform nearbi tissu work propos automat brain tumor segment method address last two difficult problemsmethod use avail mri modal t tc t textur characterist construct multidimension featur set extract cluster provid compact represent essenti inform featur main idea work incorpor cluster featur d variat segment framework contrast previous variat approach propos segment method evolv contour supervis fashion segment boundari driven learn region statist cluster space incorpor prior knowledg normal brain tissu appear estim region statist particular use dirichlet prior discourag cluster normal brain region tumor region lead better disambigu tumor brain tissueresult evalu perform automat segment method real mri scan brain tumor patient tumor inhomogen appear small size proxim major structur brain valid expert segment label yield encourag result jaccard precis recal hausdorff distanc mmconclus use prior braintumor appear propos automat d variat segment method abl better disambigu tumor surround tissu

Resumos Similares

Int J Comput Assist Radiol Surg - Automatic 3D segmentation of individual facial muscles using unlabeled prior information. ( 0,936180273214446 )
Comput Math Methods Med - A hybrid approach of using symmetry technique for brain tumor segmentation. ( 0,92925688497968 )
Comput Math Methods Med - A hybrid method for pancreas extraction from CT image based on level set methods. ( 0,926899421947661 )
IEEE J Biomed Health Inform - A spatiotemporal-based scheme for efficient registration-based segmentation of thoracic 4-D MRI. ( 0,924394045301885 )
Comput. Biol. Med. - Refinement of lung nodule candidates based on local geometric shape analysis and Laplacian of Gaussian kernels. ( 0,924271004792627 )
Comput Methods Programs Biomed - Segmentation of pituitary adenoma: a graph-based method vs. a balloon inflation method. ( 0,915365531238042 )
Comput Methods Programs Biomed - MARGA: multispectral adaptive region growing algorithm for brain extraction on axial MRI. ( 0,914879591009155 )
Med Biol Eng Comput - A fully automated human knee 3D MRI bone segmentation using the ray casting technique. ( 0,914265345693658 )
Comput. Biol. Med. - 3D geometric split-merge segmentation of brain MRI datasets. ( 0,910603157988531 )
Med Biol Eng Comput - Automatic segmentation of carotid B-mode images using fuzzy classification. ( 0,910470298601233 )
Comput. Biol. Med. - Retinal vessel segmentation using a multi-scale medialness function. ( 0,900699419706402 )
Comput Math Methods Med - Segmentation of brain MRI using SOM-FCM-based method and 3D statistical descriptors. ( 0,900645956795057 )
Int J Comput Assist Radiol Surg - Fetal brain volumetry through MRI volumetric reconstruction and segmentation. ( 0,897977421583095 )
Int J Comput Assist Radiol Surg - Acetabular cartilage segmentation in CT arthrography based on a bone-normalized probabilistic atlas. ( 0,895326049860965 )
IEEE Trans Image Process - Incorporating anatomical side information into PET reconstruction using nonlocal regularization. ( 0,895151650352437 )
Int J Comput Assist Radiol Surg - Segmentation of iodine brachytherapy implants in fluoroscopy. ( 0,895145887542762 )
Int J Comput Assist Radiol Surg - Automated aorta segmentation in low-dose chest CT images. ( 0,89077439016586 )
Int J Comput Assist Radiol Surg - Computer-aided nidus segmentation and angiographic characterization of arteriovenous malformations. ( 0,888651283536683 )
Comput Methods Programs Biomed - A novel method for pulmonary embolism detection in CTA images. ( 0,885599968609465 )
Comput. Biol. Med. - Automatic brain extraction methods for T1 magnetic resonance images using region labeling and morphological operations. ( 0,883350191596706 )
Int J Comput Assist Radiol Surg - Carotid vasculature modeling from patient CT angiography studies for interventional procedures simulation. ( 0,883204221208381 )
Comput. Biol. Med. - Accurate tumor localization and tracking in radiation therapy using wireless body sensor networks. ( 0,882857420582918 )
Comput Methods Programs Biomed - Image registration and atlas-based segmentation of cardiac outflow velocity profiles. ( 0,88233507558172 )
Med Biol Eng Comput - Automatic segmentation of the fetal cerebellum on ultrasound volumes, using a 3D statistical shape model. ( 0,880917220256461 )
IEEE Trans Image Process - Overlapping cell nuclei segmentation using a spatially adaptive active physical model. ( 0,880257657340785 )
Int J Comput Assist Radiol Surg - Automatic lung segmentation method for MRI-based lung perfusion studies of patients with chronic obstructive pulmonary disease. ( 0,880004467231563 )
Med Biol Eng Comput - Automatic segmentation of brain MR images using an adaptive balloon snake model with fuzzy classification. ( 0,878209593280206 )
Comput. Biol. Med. - Phase-based probabilistic active contour for nerve detection in ultrasound images for regional anesthesia. ( 0,876426222809676 )
Comput Methods Programs Biomed - Automatic selection of arterial input function on dynamic contrast-enhanced MR images. ( 0,875667274279071 )
Comput. Biol. Med. - Nearly automated motion artifacts correction between multi breath-hold short-axis and long-axis cine CMR images. ( 0,874938560017733 )
Comput Methods Programs Biomed - A survey of prostate segmentation methodologies in ultrasound, magnetic resonance and computed tomography images. ( 0,874455640641829 )
IEEE J Biomed Health Inform - Segmentation of tumor and edema along with healthy tissues of brain using wavelets and neural networks. ( 0,872790862020013 )
IEEE J Biomed Health Inform - Segmentation of the blood vessels and optic disk in retinal images. ( 0,872441820002825 )
Comput. Biol. Med. - Lung nodule segmentation and recognition using SVM classifier and active contour modeling: a complete intelligent system. ( 0,87159192446931 )
Int J Comput Assist Radiol Surg - Liver segmentation for contrast-enhanced MR images using partitioned probabilistic model. ( 0,871102392366139 )
Int J Comput Assist Radiol Surg - GPU accelerated segmentation and centerline extraction of tubular structures from medical images. ( 0,870999613208424 )
Comput Methods Programs Biomed - Automatic segmentation of corpus callosum using Gaussian mixture modeling and Fuzzy C means methods. ( 0,869655121687892 )
Comput Methods Programs Biomed - pSnakes: a new radial active contour model and its application in the segmentation of the left ventricle from echocardiographic images. ( 0,86913076893245 )
Int J Comput Assist Radiol Surg - Automatic segmentation of the nasal cavity and paranasal sinuses from cone-beam CT images. ( 0,868752649440251 )
Comput. Biol. Med. - A level-set based approach for anterior teeth segmentation in cone beam computed tomography images. ( 0,868483679334243 )
IEEE Trans Pattern Anal Mach Intell - Paired Regions for Shadow Detection and Removal. ( 0,86568742719142 )
Int J Comput Assist Radiol Surg - Voxel classification and graph cuts for automated segmentation of pathological periprosthetic hip anatomy. ( 0,863607052281524 )
Int J Comput Assist Radiol Surg - Nasopharyngeal carcinoma segmentation using a region growing technique. ( 0,863358050416956 )
J Med Syst - Automated bleeding detection in capsule endoscopy videos using statistical features and region growing. ( 0,863260880372528 )
Int J Comput Assist Radiol Surg - Automatic left ventricle segmentation in volumetric SPECT data set by variational level set. ( 0,863207060225039 )
Comput Methods Programs Biomed - A review of atlas-based segmentation for magnetic resonance brain images. ( 0,857177678707393 )
Int J Comput Assist Radiol Surg - Extreme leg motion analysis of professional ballet dancers via MRI segmentation of multiple leg postures. ( 0,85610392260505 )
Comput. Biol. Med. - Reducing redundancy in wireless capsule endoscopy videos. ( 0,851303297934237 )
Med Biol Eng Comput - Multiplane spectroscopic whole-body photoacoustic imaging of small animals in vivo. ( 0,847208579575051 )
Comput Math Methods Med - Multimodal brain-tumor segmentation based on Dirichlet process mixture model with anisotropic diffusion and Markov random field prior. ( 0,845747073256414 )
Int J Comput Assist Radiol Surg - Vertebra identification using template matching modelmp and K-means clustering. ( 0,840084630811904 )
IEEE Trans Image Process - Automatic craniofacial structure detection on cephalometric images. ( 0,839679325858523 )
BMC Med Inform Decis Mak - Automatic segmentation of meningioma from non-contrasted brain MRI integrating fuzzy clustering and region growing. ( 0,838931459812871 )
Comput Math Methods Med - A new multistage medical segmentation method based on superpixel and fuzzy clustering. ( 0,838791945667777 )
Int J Comput Assist Radiol Surg - Delineation of blood vessels in pediatric retinal images using decision trees-based ensemble classification. ( 0,838418615292866 )
IEEE Trans Image Process - 3D superalloy grain segmentation using a multichannel edge-weighted centroidal Voronoi tessellation algorithm. ( 0,837780564658796 )
Comput. Biol. Med. - A review on segmentation of positron emission tomography images. ( 0,837276780667791 )
Comput Methods Programs Biomed - Segmentation of ultrasound images of the carotid using RANSAC and cubic splines. ( 0,83727399083048 )
J Med Syst - Brain MR image segmentation with spatial constrained K-mean algorithm and dual-tree complex wavelet transform. ( 0,835947754897927 )
Comput Methods Programs Biomed - Enhancing classification accuracy utilizing globules and dots features in digital dermoscopy. ( 0,833104402458612 )
Comput. Biol. Med. - Estimating contrast agent motion from ultrasound images using an anisotropic diffusion-based optical flow technique. ( 0,832084112955263 )
Comput Methods Programs Biomed - Carotid artery image segmentation using modified spatial fuzzy c-means and ensemble clustering. ( 0,828156241171674 )
Comput Math Methods Med - Diabetic retinopathy grading by digital curvelet transform. ( 0,82693502367383 )
Int J Comput Assist Radiol Surg - Automated liver lesion detection in CT images based on multi-level geometric features. ( 0,826224465435395 )
Comput Math Methods Med - Automatic mapping extraction from multiecho T2-star weighted magnetic resonance images for improving morphological evaluations in human brain. ( 0,825711275866421 )
Med Biol Eng Comput - Detection of the intima and media layer thickness of ultrasound common carotid artery image using efficient active contour segmentation technique. ( 0,825607961513305 )
Int J Comput Assist Radiol Surg - Left ventricular myocardium segmentation on delayed phase of multi-detector row computed tomography. ( 0,825384760710957 )
Int J Comput Assist Radiol Surg - A 3D active model framework for segmentation of proximal femur in MR images. ( 0,825023158281776 )
Comput. Biol. Med. - Gallbladder shape extraction from ultrasound images using active contour models. ( 0,82468543992455 )
Comput. Biol. Med. - Segmentation of anterior cruciate ligament in knee MR images using graph cuts with patient-specific shape constraints and label refinement. ( 0,823200243740058 )
Int J Neural Syst - Self-supervised MRI tissue segmentation by discriminative clustering. ( 0,822783629219329 )
Int J Comput Assist Radiol Surg - Spatially adaptive active contours: a semi-automatic tumor segmentation framework. ( 0,822770358976082 )
Int J Comput Assist Radiol Surg - Expert-driven label fusion in multi-atlas-based segmentation of the prostate using weighted atlases. ( 0,821180081965827 )
Int J Comput Assist Radiol Surg - PNist: interactive volumetric measurements of plexiform neurofibromas in MRI scans. ( 0,820464573529955 )
Comput Math Methods Med - Retrieval of brain tumors with region-specific bag-of-visual-words representations in contrast-enhanced MRI images. ( 0,820442011624114 )
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. ( 0,820201441974499 )
Comput. Biol. Med. - Optic disc segmentation using the sliding band filter. ( 0,819592602897415 )
IEEE Trans Image Process - VE-LLI-VO: vessel enhancement using local line integrals and variational optimization. ( 0,81944219217418 )
Int J Comput Assist Radiol Surg - An algorithm for calculi segmentation on ureteroscopic images. ( 0,818526604050132 )
Int J Comput Assist Radiol Surg - Local noise estimation in low-dose chest CT images. ( 0,818104532835664 )
Comput Math Methods Med - Esophagus segmentation from 3D CT data using skeleton prior-based graph cut. ( 0,817722477350773 )
Methods Inf Med - A statistical cerebroarterial atlas derived from 700 MRA datasets. ( 0,8168298768203 )
Int J Comput Assist Radiol Surg - Automated segmentation of basal ganglia and deep brain structures in MRI of Parkinson's disease. ( 0,815687966279447 )
Int J Comput Assist Radiol Surg - Statistical model-based segmentation of the proximal femur in digital antero-posterior (AP) pelvic radiographs. ( 0,81222080007876 )
Methods Inf Med - ML segmentation strategies for object interference compensation in FDG-PET lesion quantification. ( 0,811594357694822 )
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. ( 0,810998252687785 )
Comput Methods Programs Biomed - Geometrical methods for level set based abdominal aortic aneurysm thrombus and outer wall 2D image segmentation. ( 0,81064565412918 )
Int J Comput Assist Radiol Surg - A computerized MRI biomarker quantification scheme for a canine model of Duchenne muscular dystrophy. ( 0,810374922919932 )
Comput Math Methods Med - Detection of pulmonary nodules in CT images based on fuzzy integrated active contour model and hybrid parametric mixture model. ( 0,810183745466758 )
Artif Intell Med - A segmentation framework for abdominal organs from CT scans. ( 0,809782086677669 )
Med Biol Eng Comput - A review of ultrasound common carotid artery image and video segmentation techniques. ( 0,809397377024103 )
IEEE Trans Image Process - Spatio-temporal video segmentation with shape growth or shrinkage constraint. ( 0,80860199428344 )
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. ( 0,806946801552356 )
IEEE Trans Image Process - Automatic segmentation of the left atrium from MR images via variational region growing with a moments-based shape prior. ( 0,805470653707843 )
Comput. Biol. Med. - Numerical investigation of ultrasonic attenuation through 2D trabecular bone structures reconstructed from CT scans and random realizations. ( 0,803815423524339 )
J Med Syst - Computer assisted diagnostic system in tumor radiography. ( 0,803221580183718 )
IEEE Trans Image Process - Adaptive image registration via hierarchical Voronoi subdivision. ( 0,801356660560804 )
Methods Inf Med - A fast, automatic segmentation algorithm for locating and delineating touching cell boundaries in imaged histopathology. ( 0,799267336565147 )
Int J Comput Assist Radiol Surg - Ameliorating slice gaps in multislice magnetic resonance images: an interpolation scheme. ( 0,798944039316415 )
Sci Data - Reliability of brain volume measurements: a test-retest dataset. ( 0,797567505828356 )