{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T08:07:39Z","timestamp":1771488459913,"version":"3.50.1"},"reference-count":34,"publisher":"IOP Publishing","issue":"2","license":[{"start":{"date-parts":[[2021,1,22]],"date-time":"2021-01-22T00:00:00Z","timestamp":1611273600000},"content-version":"vor","delay-in-days":1,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2021,1,22]],"date-time":"2021-01-22T00:00:00Z","timestamp":1611273600000},"content-version":"tdm","delay-in-days":1,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Phys. Med. Biol."],"published-print":{"date-parts":[[2021,1,21]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Periacetabular osteotomy (PAO) is a joint preservation procedure for developmental dysplasia of the hip. Such a procedure requires osteotomy of the medial wall of the acetabulum, which may cause the narrow of the bony birth canal and increase the risk of complications during the childbirth process in the future. Using quantitative analysis of the bony birth canal to determine the risk of complications for the childbirth process remains a challenging task. The purpose of this paper is to explore a new 3D CT measurement method to quantify the narrowest parameters of the bony birth canal of the female patients with hip dysplasia before and after unilateral PAO surgery. By analyzing the impact of PAO surgery on the bony birth canal, the patient\u2019s risk of complications during the childbirth process in the future can be estimated, and it can be utilized for doctors to determine the impact of unilateral PAO for choosing appropriate delivery method. In this paper, a mean shape of the preoperative pelvises is obtained by using the statistical shape model algorithm, and the mean shape includes pelvic shape features of all the preoperative pelvises, and it can be utilized as the standard pelvic template. A bidirectional iterative algorithm is used to generate a standard bony birth canal path template. Then, the pelvic registration and principal plane deformation constraint are utilized to calculate the optimal bony birth canal path. The proposed method is verified in 31 cases of CT data with the approval of the institutional review board. The test data contain preoperative and postoperative CT images. Compared with the benchmark method, the measurement accuracy of the narrowest position and diameter of the bony birth canal is improved by 65% and 78%, respectively. In addition, the processing speed is increased by 32%. Experimental results demonstrate that the proposed method has high accuracy and validity for quantifying the bony birth canal. The proposed method can measure the anatomical parameters of the bony birth canal accurately. In addition, the doctor can make optimal planning for childbirth with the help of the quantitative analysis of the bony birth canal.<\/jats:p>","DOI":"10.1088\/1361-6560\/abcb22","type":"journal-article","created":{"date-parts":[[2020,11,17]],"date-time":"2020-11-17T23:03:02Z","timestamp":1605654182000},"page":"025007","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["Quantitative analysis of bony birth canal for periacetabular osteotomy patient by template fitting"],"prefix":"10.1088","volume":"66","author":[{"given":"Long","family":"Shao","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7754-7141","authenticated-orcid":false,"given":"Heng","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinxin","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanjun","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liujia","family":"Shi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Danni","family":"Ai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jingfan","family":"Fan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hong","family":"Song","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hong","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1250-6319","authenticated-orcid":false,"given":"Jian","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"266","published-online":{"date-parts":[[2021,1,22]]},"reference":[{"key":"pmbabcb22bib1","first-page":"369","type":"journal-article","article-title":"The cephalopelvic disproportion index. Combined fetal sonography and x-ray pelvimetry for early detection of cephalopelvic disproportion","volume":"36","author":"Abitbol","year":"1991","journal-title":"J. Reprod. Med."},{"key":"pmbabcb22bib2","doi-asserted-by":"crossref","first-page":"2812","DOI":"10.1039\/C3AY41907J","type":"journal-article","article-title":"Principal component analysis","volume":"6","author":"Bro","year":"2014","journal-title":"Anal. Methods"},{"key":"pmbabcb22bib3","doi-asserted-by":"publisher","first-page":"746","DOI":"10.1002\/mp.13361","type":"journal-article","article-title":"Breast mass classification in sonography with transfer learning using a deep convolutional neural network and color conversion","volume":"46","author":"Byra","year":"2019","journal-title":"Med. Phys."},{"key":"pmbabcb22bib4","doi-asserted-by":"publisher","first-page":"173","DOI":"10.1016\/j.media.2015.08.011","type":"journal-article","article-title":"MASCG: Multi-Atlas Segmentation Constrained Graph method for accurate segmentation of hip CT images","volume":"26","author":"Chu","year":"2015","journal-title":"Med. Image Anal."},{"key":"pmbabcb22bib5","doi-asserted-by":"publisher","first-page":"241","DOI":"10.1016\/j.media.2017.08.003","type":"journal-article","article-title":"Registration and fusion quantification of augmented reality based nasal endoscopic surgery","volume":"42","author":"Chu","year":"2017","journal-title":"Med. Image Anal."},{"key":"pmbabcb22bib6","first-page":"129","type":"conference-proceedings","article-title":"MeshLab: an open-source mesh processing tool","author":"Cignoni","year":"2008"},{"key":"pmbabcb22bib7","doi-asserted-by":"publisher","first-page":"63","DOI":"10.1007\/s001320050009","type":"journal-article","article-title":"Birth after peri-acetabular osteotomy","volume":"29","author":"Fluckiger","year":"2000","journal-title":"Orthopade"},{"key":"pmbabcb22bib8","doi-asserted-by":"publisher","first-page":"538","DOI":"10.1118\/1.4815767","type":"journal-article","article-title":"TH\u2010C\u2010WAB\u201010: gradient assisted non\u2010connected automatic region (GANAR) algorithm: towards robust PET\u2010based target definition","volume":"40","author":"Galavis","year":"2013","journal-title":"Med. Phys."},{"key":"pmbabcb22bib9","doi-asserted-by":"publisher","first-page":"26","DOI":"10.1097\/00003086-198807000-00006","type":"journal-article","article-title":"A new periacetabular osteotomy for the treatment of hip dysplasias technique and preliminary results","volume":"232","author":"Ganz","year":"1988","journal-title":"Clin. Orthop. Relat. Res."},{"key":"pmbabcb22bib10","doi-asserted-by":"publisher","DOI":"10.1088\/1361-6560\/ab1786","type":"journal-article","article-title":"Principal component analysis for fast and model-free denoising of multi b-value diffusion-weighted MR images","volume":"64","author":"Gurney-Champion","year":"2019","journal-title":"Phys. Med. Biol."},{"key":"pmbabcb22bib11","doi-asserted-by":"publisher","first-page":"R98","DOI":"10.1186\/ar1978","type":"journal-article","article-title":"Relaxin and \u03b2-estradiol modulate targeted matrix degradation in specific synovial joint fibrocartilages: progesterone prevents matrix loss","volume":"8","author":"Hashem","year":"2006","journal-title":"Arthritis Res. Ther."},{"key":"pmbabcb22bib12","doi-asserted-by":"publisher","first-page":"531","DOI":"10.1016\/j.jos.2017.01.019","type":"journal-article","article-title":"Three-dimensional computed tomography analysis on bony birth canal after bilateral periacetabular osteotomy","volume":"22","author":"Ishimatsu","year":"2017","journal-title":"J. Orthop. Sci."},{"key":"pmbabcb22bib13","doi-asserted-by":"publisher","first-page":"3548","DOI":"10.1016\/j.patcog.2010.04.015","type":"journal-article","article-title":"Hole filling in 3D volumetric objects","volume":"43","author":"Janaszewski","year":"2010","journal-title":"Pattern Recognit."},{"key":"pmbabcb22bib14","doi-asserted-by":"publisher","first-page":"1436","DOI":"10.1007\/s11999-010-1616-x","type":"journal-article","article-title":"A periacetabular osteotomy for the treatment of severe dysplastic hips","volume":"469","author":"Karashima","year":"2011","journal-title":"Clin. Orthop. Relat. Res."},{"key":"pmbabcb22bib15","doi-asserted-by":"publisher","first-page":"1591","DOI":"10.1067\/mob.2002.126852","type":"journal-article","article-title":"Three-dimensional computed tomography evaluation of bony birth canal morphologic deformity (small pelvic cavity) after dome pelvic osteotomy for developmental dysplasia of the hip","volume":"187","author":"Kojima","year":"2002","journal-title":"Am. J. Obstet. Gynecol."},{"key":"pmbabcb22bib16","doi-asserted-by":"publisher","first-page":"628","DOI":"10.1002\/cyto.a.23490","type":"journal-article","article-title":"Cell dynamic morphology classification using deep convolutional neural networks","volume":"93","author":"Li","year":"2018","journal-title":"Cytometry A"},{"key":"pmbabcb22bib17","doi-asserted-by":"publisher","DOI":"10.1088\/1361-6560\/aac226","type":"journal-article","article-title":"Sparse intervertebral fence composition for 3D cervical vertebra segmentation","volume":"63","author":"Liu","year":"2018","journal-title":"Phys. Med. Biol."},{"key":"pmbabcb22bib18","doi-asserted-by":"publisher","first-page":"29","DOI":"10.1007\/s004020100322","type":"journal-article","article-title":"The long-term effect of pelvic osteotomy on birth canal size","volume":"122","author":"Loder","year":"2002","journal-title":"Arch. Orthop. Trauma Surg."},{"key":"pmbabcb22bib19","doi-asserted-by":"publisher","first-page":"225","DOI":"10.1016\/j.tripleo.2005.10.039","type":"journal-article","article-title":"Assessment of bone segmentation quality of cone-beam CT versus multislice spiral CT: a pilot study","volume":"102","author":"Loubele","year":"2006","journal-title":"Oral Surg. Oral Med. Oral Pathol. Oral Radiol. Endodontics"},{"key":"pmbabcb22bib20","first-page":"1","type":"journal-article","article-title":"Statismo-A framework for PCA based statistical models","volume":"1","author":"L\u00fcthi","year":"2012","journal-title":"Insight J."},{"key":"pmbabcb22bib21","doi-asserted-by":"publisher","first-page":"1677","DOI":"10.1007\/s11999-010-1588-x","type":"journal-article","article-title":"Preoperative radiographic assessment of limb-length discrepancy in total hip arthroplasty","volume":"469","author":"Meermans","year":"2011","journal-title":"Clin. Orthop. Relat. Res."},{"key":"pmbabcb22bib22","first-page":"565","type":"conference-proceedings","article-title":"V-net: fully convolutional neural networks for volumetric medical image segmentation","author":"Milletari","year":"2016"},{"key":"pmbabcb22bib23","doi-asserted-by":"publisher","first-page":"163","DOI":"10.2214\/AJR.11.8185","type":"journal-article","article-title":"Assessing the relation between bone marrow signal intensity and apparent diffusion coefficient in diffusion-weighted MRI","volume":"200","author":"Padhani","year":"2013","journal-title":"Am. J. Roentgenol."},{"key":"pmbabcb22bib24","doi-asserted-by":"publisher","first-page":"592","DOI":"10.1016\/j.ijrobp.2007.02.005","type":"journal-article","article-title":"Automatic segmentation of pelvic structures from magnetic resonance images for prostate cancer radiotherapy","volume":"68","author":"Pasquier","year":"2007","journal-title":"Int. J. Radiat. Oncol. Biol. Phys."},{"key":"pmbabcb22bib25","doi-asserted-by":"publisher","first-page":"346","DOI":"10.1097\/01.brs.0000152379.54463.65","type":"journal-article","article-title":"Classification of the normal variation in the sagittal alignment of the human lumbar spine and pelvis in the standing position","volume":"30","author":"Roussouly","year":"2005","journal-title":"Spine"},{"key":"pmbabcb22bib26","doi-asserted-by":"publisher","first-page":"370","DOI":"10.1515\/JPM.2009.051","type":"journal-article","article-title":"Changes in symphysis pubis width during labor","volume":"37","author":"Rustamova","year":"2009","journal-title":"J. Perinat. Med."},{"key":"pmbabcb22bib27","doi-asserted-by":"publisher","first-page":"8517","DOI":"10.1088\/0031-9155\/58\/23\/8517","type":"journal-article","article-title":"Real-time estimation of prostate tumor rotation and translation with a kV imaging system based on an iterative closest point algorithm","volume":"58","author":"Tehrani","year":"2013","journal-title":"Phys. Med. Biol."},{"key":"pmbabcb22bib28","first-page":"199","type":"journal-article","article-title":"Obstetrical study of the pelvis: a historical overview","volume":"57","author":"Thiery","year":"1995","journal-title":"Verh. K. Acad. Geneeskunde Belgie."},{"key":"pmbabcb22bib29","doi-asserted-by":"publisher","first-page":"552","DOI":"10.2106\/00004623-200204000-00007","type":"journal-article","article-title":"Magnetic resonance imaging pelvimetry before and after a periacetabular osteotomy","volume":"84","author":"Trousdale","year":"2002","journal-title":"J. Bone Joint Surg. Am."},{"key":"pmbabcb22bib30","doi-asserted-by":"publisher","first-page":"1437","DOI":"10.1097\/BRS.0b013e3182a45e07","type":"journal-article","article-title":"Magnetic resonance imaging morphology and morphometry of the coccyx in coccydynia","volume":"38","author":"Woon","year":"2013","journal-title":"Spine"},{"key":"pmbabcb22bib31","doi-asserted-by":"publisher","first-page":"473","DOI":"10.1007\/s00264-009-0785-2","type":"journal-article","article-title":"Evaluation of acetabular versions after a curved periacetabular osteotomy for dysplastic hips","volume":"34","author":"Xie","year":"2010","journal-title":"Int. Orthop."},{"key":"pmbabcb22bib32","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0130173","type":"journal-article","article-title":"PET index of bone glucose metabolism (PIBGM) classification of PET\/CT data for fever of unknown origin diagnosis","volume":"10","author":"Yang","year":"2015","journal-title":"Plos One"},{"key":"pmbabcb22bib33","doi-asserted-by":"publisher","first-page":"388","DOI":"10.2106\/JBJS.17.00187","type":"journal-article","article-title":"Unexpected long lower limb in patients with unilateral hip dislocation","volume":"100","author":"Zhang","year":"2018","journal-title":"JBJS"},{"key":"pmbabcb22bib34","doi-asserted-by":"publisher","first-page":"126","DOI":"10.1145\/1409060.1409079","type":"journal-article","article-title":"Real-time kd-tree construction on graphics hardware","volume":"27","author":"Zhou","year":"2008","journal-title":"ACM Trans. Grap. (TOG)"}],"container-title":["Physics in Medicine &amp; Biology"],"original-title":[],"link":[{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22","content-type":"text\/html","content-version":"am","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"similarity-checking"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22","content-type":"text\/html","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,29]],"date-time":"2025-11-29T13:15:27Z","timestamp":1764422127000},"score":1,"resource":{"primary":{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/abcb22"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,1,21]]},"references-count":34,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2021,1,22]]},"published-print":{"date-parts":[[2021,1,21]]}},"URL":"https:\/\/doi.org\/10.1088\/1361-6560\/abcb22","relation":{},"ISSN":["0031-9155","1361-6560"],"issn-type":[{"value":"0031-9155","type":"print"},{"value":"1361-6560","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,1,21]]},"assertion":[{"value":"Quantitative analysis of bony birth canal for periacetabular osteotomy patient by template fitting","name":"article_title","label":"Article Title"},{"value":"Physics in Medicine & Biology","name":"journal_title","label":"Journal Title"},{"value":"paper","name":"article_type","label":"Article Type"},{"value":"\u00a9 2021 Institute of Physics and Engineering in Medicine. All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2020-08-11","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2020-11-17","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2021-01-22","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}