Comput. Aided Surg. - Computerized ellipse method for measuring acetabular version after total hip replacement--a precision study using synthetic and real radiographs.

Tópicos

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

Resumo

CKGROUND: Previous work by our group to address the problem of acetabular positioning based on 2D methods resulted in the development of a measurement method with better precision--Liaw's version. This method may help the early diagnosis of acetabular loosening. In the present study, we hypothesized that our computerized ellipse method could improve the precision of measuring acetabular version.METHODS: We developed our Elliversion software to measure acetabular version. Using total hip replacement (THR) Simulator, 96 radiographs were synthesized with random femoral inclination and 5? to 52? version, half with the femoral head included and half without. These synthetic radiographs and 28 real radiographs were measured with both Elliversion and the trigonometric method twice by one of the authors with a one-week interval between measurements. We then calculated the difference in the repeated measurements. Student's t-test was used for statistical analysis of the measuring error and inter-measurement difference.RESULTS: In the precision study, for synthetic radiographs including the femoral head, the ellipse method was significantly better than the trigonometric method (p < 0.01). For synthetic radiographs without the femoral head, there was no significant difference between the ellipse method and the trigonometric method (p = 0.19). As for the repeated measurements, for synthetic radiographs including the femoral head, the ellipse method was significantly better than the trigonometric method (p = 0.001), whereas for synthetic radiographs without the femoral head, there was no significant difference between the two methods (p = 0.17). For real radiographs, there was no significant difference between the two measuring methods (p = 0.12). However, if we excluded the four poor-quality radiographs, there was a significant difference between the two measuring methods (p = 0.04).DISCUSSION: We developed a computerized ellipse method for measuring acetabular version on synthetic radiographs and good-quality real radiographs. This method is characterized by its superior precision as compared to the trigonometric method. With the 2D standardized method (Liaw's version), improving the precision of measurement will help earlier diagnosis of acetabular loosening.

Resumo Limpo

ckground previous work group address problem acetabular posit base d method result develop measur method better precisionliaw version method may help earli diagnosi acetabular loosen present studi hypothes computer ellips method improv precis measur acetabular versionmethod develop ellivers softwar measur acetabular version use total hip replac thr simul radiograph synthes random femor inclin version half femor head includ half without synthet radiograph real radiograph measur ellivers trigonometr method twice one author oneweek interv measur calcul differ repeat measur student ttest use statist analysi measur error intermeasur differenceresult precis studi synthet radiograph includ femor head ellips method signific better trigonometr method p synthet radiograph without femor head signific differ ellips method trigonometr method p repeat measur synthet radiograph includ femor head ellips method signific better trigonometr method p wherea synthet radiograph without femor head signific differ two method p real radiograph signific differ two measur method p howev exclud four poorqual radiograph signific differ two measur method p discuss develop computer ellips method measur acetabular version synthet radiograph goodqual real radiograph method character superior precis compar trigonometr method d standard method liaw version improv precis measur will help earlier diagnosi acetabular loosen

Resumos Similares

Comput. Aided Surg. - Imageless navigation assisted total knee arthroplasty with comprehensive gap balancing in medial osteoarthritic varus knees with anatomic variations. ( 0,689904399894806 )
Comput. Aided Surg. - Is computer-assisted surgery in total knee arthroplasty as accurate as it can be? ( 0,663278322953456 )
Int J Comput Assist Radiol Surg - Assessment of two 3-D fluoroscopic systems for articular fracture reduction: a cadaver study. ( 0,649159730802994 )
J Telemed Telecare - A pilot trial of the iPad tablet computer as a portable device for visual acuity testing. ( 0,628504265771549 )
Med Biol Eng Comput - Model of glucose sensor error components: identification and assessment for new Dexcom G4 generation devices. ( 0,614958100899354 )
Int J Comput Assist Radiol Surg - New method for internal anal sphincter measurements: feasibility study. ( 0,608262693303366 )
J Clin Monit Comput - The effect of desflurane versus propofol on regional cerebral oxygenation in the sitting position for shoulder arthroscopy. ( 0,604047583049711 )
J Clin Monit Comput - Parameter selection in permutation entropy for an electroencephalographic measure of isoflurane anesthetic drug effect. ( 0,598082948770976 )
J Med Syst - Unbiased group-wise image registration: applications in brain fiber tract atlas construction and functional connectivity analysis. ( 0,597410923037136 )
Int J Comput Assist Radiol Surg - Position error reduction in a mechanical tracking linkage for arthroscopic hip surgery. ( 0,596384585099813 )
Med Decis Making - Exploring the validity of HPQ-based presenteeism measures to estimate productivity losses in the health and education sectors. ( 0,592943090452882 )
IEEE Trans Image Process - A maximum likelihood approach to joint image registration and fusion. ( 0,585241527285905 )
Int J Med Robot - Anatomical comparison and evaluation of human proximal femurs modeling via different devices and FEM analysis. ( 0,576806141233284 )
Comput Math Methods Med - Effectiveness of variable-gain Kalman filter based on angle error calculated from acceleration signals in lower limb angle measurement with inertial sensors. ( 0,574486583521551 )
J Biomed Inform - Optimal marker placement in hadrontherapy: intelligent optimization strategies with augmented Lagrangian pattern search. ( 0,567272770146114 )
Comput Methods Programs Biomed - Automated segmentation of optic disc region on retinal fundus photographs: Comparison of contour modeling and pixel classification methods. ( 0,565425731823155 )
Int J Comput Assist Radiol Surg - Prostate multimodality image registration based on B-splines and quadrature local energy. ( 0,561182227070284 )
Comput Methods Programs Biomed - Validating a postural evaluation method developed using a Digital Image-based Postural Assessment (DIPA) software. ( 0,559499161911846 )
IEEE Trans Image Process - A Markov random field approach for topology-preserving registration: application to object-based tomographic image interpolation. ( 0,551608119964201 )
Comput Methods Programs Biomed - MATLAB-implemented estimation procedure for model-based assessment of hepatic insulin degradation from standard intravenous glucose tolerance test data. ( 0,551598093312121 )
J Clin Monit Comput - Pre-puncture ultrasound guided epidural insertion before vaginal delivery. ( 0,548495420285433 )
Med Biol Eng Comput - Intra-protocol repeatability and inter-protocol agreement for the analysis of scapulo-humeral coordination. ( 0,546766718728157 )
Comput Methods Programs Biomed - An optimal closed-loop control strategy for mechanical chest compression devices: a trade-off between the risk of chest injury and the benefit of enhanced blood flow. ( 0,545302601089941 )
Int J Med Robot - Accuracy of a hexapod parallel robot kinematics based external fixator. ( 0,543791515448032 )
Comput. Biol. Med. - Urodynamic characteristics of rats with detrusor instability. ( 0,540238987237507 )
Comput. Biol. Med. - Development of a joint space width measurement method based on radiographic hand images. ( 0,540100924389737 )
Med Decis Making - Patient and societal value functions for the testing morbidities index. ( 0,539691448598811 )
Comput Math Methods Med - Fully automated detection of corticospinal tract damage in chronic stroke patients. ( 0,537610053701271 )
Comput Math Methods Med - Improving the convergence rate in affine registration of PET and SPECT brain images using histogram equalization. ( 0,535694238426823 )
Int J Med Robot - Ex vivo measurement reliability using two different cbct scanners for orthodontic purposes. ( 0,534968613709027 )
J Med Syst - Impact of ensemble learning in the assessment of skeletal maturity. ( 0,529299823202892 )
Comput. Biol. Med. - Time frequency power profile of QRS complex obtained with wavelet transform in spontaneously hypertensive rats. ( 0,528206575958778 )
Comput. Aided Surg. - Reliability of frames of reference used for tibial component rotation in total knee arthroplasty. ( 0,527710479105662 )
Med Decis Making - Effectiveness of a decision-training aid on referral prioritization capacity: a randomized controlled trial. ( 0,523194087636626 )
Comput Math Methods Med - Prediction of breeding values for dairy cattle using artificial neural networks and neuro-fuzzy systems. ( 0,520540059635498 )
J. Med. Internet Res. - Self-test web-based pure-tone audiometry: validity evaluation and measurement error analysis. ( 0,518855660014183 )
Telemed J E Health - Teleophthalmology assessment of diabetic retinopathy fundus images: smartphone versus standard office computer workstation. ( 0,518603203019222 )
Comput Math Methods Med - Thresholded two-phase test sample representation for outlier rejection in biological recognition. ( 0,517892183065838 )
J Telemed Telecare - A comparison of tele-education versus conventional lectures in wound care knowledge and skill acquisition. ( 0,517641036355086 )
J Telemed Telecare - The use of text messaging to improve asthma control: a pilot study using the mobile phone short messaging service (SMS). ( 0,517049003625042 )
Int J Med Robot - Comparison of optical and electromagnetic tracking for navigated lateral skull base surgery. ( 0,512595344167057 )
Comput. Aided Surg. - Navigated versus conventional transfixation of AC joint injuries: feasibility and accuracy. ( 0,512323326097293 )
J Telemed Telecare - A randomised controlled trial of an SMS-based mobile epilepsy education system. ( 0,51113337907108 )
Int J Comput Assist Radiol Surg - Precision of volumetric assessment of proximal femur microarchitecture from high-resolution 3T MRI. ( 0,509827799980807 )
Int J Comput Assist Radiol Surg - Validation of model-guided placement of external ventricular drains. ( 0,509716897276746 )
Comput Math Methods Med - Normality index of ventricular contraction based on a statistical model from FADS. ( 0,508881689075862 )
Int J Comput Assist Radiol Surg - Left ventricle wall motion quantification from echocardiographic images by non-rigid image registration. ( 0,507225362400281 )
Artif Intell Med - Support vector methods for survival analysis: a comparison between ranking and regression approaches. ( 0,506702210253618 )
IEEE Trans Image Process - Gradient-based source and mask optimization in optical lithography. ( 0,505741085788322 )
J. Med. Internet Res. - Effects of mobile augmented reality learning compared to textbook learning on medical students: randomized controlled pilot study. ( 0,502271683051163 )
Int J Comput Assist Radiol Surg - Immobilization and catheter guidance for breast brachytherapy. ( 0,501339043117747 )
Int J Comput Assist Radiol Surg - Acetabular orientation: anatomical and functional measurement. ( 0,501038266290018 )
Comput Methods Programs Biomed - Ultrasound IMT measurement on a multi-ethnic and multi-institutional database: our review and experience using four fully automated and one semi-automated methods. ( 0,500410257203507 )
Int J Med Robot - Evaluation of a neurosurgical robotic system to make accurate burr holes. ( 0,499080210941967 )
J. Med. Internet Res. - Supporting informed decision making for prostate specific antigen (PSA) testing on the web: an online randomized controlled trial. ( 0,498533644135251 )
Med Biol Eng Comput - Does femoral strain distribution coincide with the occurrence of cervical versus trochanteric hip fractures? An experimental finite element study. ( 0,498000823830316 )
J Clin Monit Comput - Transcutaneous continuous carbon dioxide tension monitoring reduced incidence, degree and duration of hypercapnia during combined regional anaesthesia and monitored anaesthesia care in shoulder surgery patients. ( 0,49792290082171 )
Int J Comput Assist Radiol Surg - Semi-automatic MRI segmentation and volume quantification of intra-plaque hemorrhage. ( 0,49721166957397 )
J Clin Monit Comput - Right ventricular function in late-onset Pompe disease. ( 0,495272273951422 )
J Telemed Telecare - Design and pilot results of a mobile phone weight-loss application for women starting a meal replacement programme. ( 0,494082949877879 )
Int J Med Inform - The effect of an interactive e-drug calculations package on nursing students' drug calculation ability and self-efficacy. ( 0,49371117541713 )
Int J Comput Assist Radiol Surg - Temporal bone borehole accuracy for cochlear implantation influenced by drilling strategy: an in vitro study. ( 0,493354247612729 )
J Biomed Inform - Collaborative virtual reality based advanced cardiac life support training simulator using virtual reality principles. ( 0,491633394105956 )
Artif Intell Med - Missing data in medical databases: impute, delete or classify? ( 0,491562962174548 )
Int J Med Robot - Validation of the femoral component placement during hip resurfacing: a comparison between the conventional jig, patient-specific template, and CT-based navigation. ( 0,490509709159876 )
J Telemed Telecare - Expert visual guidance of ultrasound for telemedicine. ( 0,489125995706117 )
AMIA Annu Symp Proc - The effect of reference panels and software tools on genotype imputation. ( 0,48792270531401 )
J. Med. Internet Res. - Exploring the efficacy of replacing linear paper-based patient cases in problem-based learning with dynamic Web-based virtual patients: randomized controlled trial. ( 0,487558665694576 )
Int J Comput Assist Radiol Surg - Analysis of the micro-migration of sliding hip screws by using point-based registration. ( 0,486411961677412 )
J Clin Monit Comput - Comparison of an ultrasound-guided technique versus a landmark-guided technique for internal jugular vein cannulation. ( 0,48622732569816 )
Telemed J E Health - Teledietetics improves weight reduction by modifying eating behavior: a randomized controlled trial. ( 0,486021919939214 )
Med Decis Making - Systematic review and empirical comparison of contemporaneous EQ-5D and SF-6D group mean scores. ( 0,485911384528949 )
IEEE Trans Image Process - Simultaneous multiresolution strategies for nonrigid image registration. ( 0,484866736168857 )
Int J Comput Assist Radiol Surg - C-arm angle measurement with accelerometer for brachytherapy: an accuracy study. ( 0,484651121513967 )
Int J Comput Assist Radiol Surg - Determining the position of a patient reference from C-Arm views for image guided navigation. ( 0,48427778434948 )
Int J Comput Assist Radiol Surg - New prototype neuronavigation system based on preoperative imaging and intraoperative freehand ultrasound: system description and validation. ( 0,480919913572386 )
Int J Comput Assist Radiol Surg - Acetabular orientation variability and symmetry based on CT scans of adults. ( 0,480466023108436 )
IEEE Trans Image Process - Group-sensitive multiple kernel learning for object recognition. ( 0,480244139735156 )
Int J Comput Assist Radiol Surg - Towards accurate, robust and practical ultrasound-CT registration of vertebrae for image-guided spine surgery. ( 0,479724051672469 )
Int J Med Robot - Functional assessment of a surgical robot for reduction of lower limb fractures. ( 0,475636081931179 )
Comput. Aided Surg. - Non-invasive quantification of lower limb mechanical alignment in flexion. ( 0,474955162039154 )
Comput Math Methods Med - In vitro evaluation of ferrule effect and depth of post insertion on fracture resistance of fiber posts. ( 0,474809324830611 )
Comput. Aided Surg. - Effect of registration mode on neuronavigation precision: an exploration of the role of random error. ( 0,473963808557612 )
Int J Comput Assist Radiol Surg - Accuracy analysis in MRI-guided robotic prostate biopsy. ( 0,473044941404251 )
J Telemed Telecare - Implementation of a telehealth programme for patients with severe chronic obstructive pulmonary disease treated with long-term oxygen therapy. ( 0,471997791003776 )
IEEE Trans Neural Netw Learn Syst - Group Factor Analysis. ( 0,469112650532604 )
Artif Intell Med - Transductive domain adaptive learning for epileptic electroencephalogram recognition. ( 0,46881021481468 )
Med Decis Making - Efficacy of a web-based intelligent tutoring system for communicating genetic risk of breast cancer: a fuzzy-trace theory approach. ( 0,468807230938495 )
Comput Methods Programs Biomed - A computer assessment of the effect of hindfoot alignment on mechanical axis deviation. ( 0,468784559798413 )
Telemed J E Health - The impact of telehome care on health status and quality of life among patients with diabetes in a primary care setting in Poland. ( 0,468766557067996 )
J Telemed Telecare - Mobile-phone text messaging (SMS) for providing oral health education to mothers of preschool children in Belgaum City. ( 0,468574131516218 )
Comput Methods Programs Biomed - Estimation algorithm of the bowel motility based on regression analysis of the jitter and shimmer of bowel sounds. ( 0,468135978021619 )
Int J Comput Assist Radiol Surg - Image registration of pre-procedural MRI and intra-procedural CT images to aid CT-guided percutaneous cryoablation of renal tumors. ( 0,467974848438863 )
Comput. Biol. Med. - Automatic characterization of thoracic aortic aneurysms from CT images. ( 0,467310128410037 )
Int J Comput Assist Radiol Surg - Comparing two approaches to rigid registration of three-dimensional ultrasound and magnetic resonance images for neurosurgery. ( 0,466588647984596 )
J Am Med Inform Assoc - Missing values in deduplication of electronic patient data. ( 0,466253399300423 )
Med Biol Eng Comput - A hybrid strategy to integrate surface-based and mutual-information-based methods for co-registering brain SPECT and MR images. ( 0,46512358992671 )
Int J Comput Assist Radiol Surg - Optimal setting of image bounding box can improve registration accuracy of diffusion tensor tractography. ( 0,464824859598849 )
J. Med. Internet Res. - Effectiveness of E-self-help interventions for curbing adult problem drinking: a meta-analysis. ( 0,464787287156482 )
Comput Math Methods Med - Effects of first-time overnight CPAP therapy for increasing the complexity of the patient's physiological system. ( 0,464509773315847 )