Evidence map›Paper›PMID 35292056›Full record

ArticleJournal of orthopaedic surgery and research2022

Utility of a novel integrated deep convolutional neural network for the segmentation of hip joint from computed tomography images in the preoperative planning of total hip arthroplasty.

Dong Wu, Xin Zhi, Xingyu Liu, Yiling Zhang, Wei Chai

Open access · goldAbstract read
In one paragraph

Article in Journal of orthopaedic surgery and research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

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  13. [Effectiveness analysis of revision surgery after total hip arthroplasty assisted by artificial intelligence preoperative planning system].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Dong Wu *Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China.
Xin Zhi *Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China.
Xingyu Liu *Longwood Valley Medical Technology Co. Ltd, Beijing, China.
Yiling ZhangLongwood Valley Medical Technology Co. Ltd, Beijing, China. ylzhang@changmugu.com.
Wei ChaiSenior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China. Chaiwei301@163.com.ORCID http://orcid.org/0000-0001-8781-9745
Chinese PLA General Hospital · CNTsinghua–Berkeley Shenzhen Institute · CNValley Medical Center · US

Funding

General Hospital of People's Liberation Army 2019MBD-041Innovative Research Group Project of the National Natural Science Foundation of China 81772320
6 · The paper itself

Abstract

purposePreoperative three-dimensional planning is important for total hip arthroplasty. To simulate the placement of joint implants on computed tomography (CT), pelvis and femur must be segmented. Accurate and rapid segmentation of the hip joint is challenging. This study aimed to develop a novel deep learning network, named Changmugu Net (CMG Net), which could achieve accurate segmentation of the femur and pelvis.

methodsThe overall deep neural network architecture of CMG Net employed three interrelated modules. CMG Net included the 2D U-net to separate the bony and soft tissues. The modular hierarchy method was used for the main femur segmentation to achieve better performance. A layer classifier was adopted to localise femur layers among a series of CT scan images. The first module was a modified 2D U-net, which separated bony and soft tissues; it provided intermediate supervision for the main femur segmentation. The second module was the main femur segmentation, which was used to distinguish the femur from the acetabulum. The third module was the layer classifier, which served as a post-processor for the second module.

resultsThere was a much greater overlap in accuracy results with the "gold standard" segmentation than with competing networks. The dice overlap coefficient was 93.55% ± 5.57%; the mean surface distance was 1.34 ± 0.24 mm, and the Hausdorff distance was 4.19 ± 1.04 mm in the normal and diseased hips, which indicated greater accuracy than the other four competing networks. Moreover, the mean segmentation time of CMG Net was 25.87 ± 2.73 s, which was shorter than the times of the other four networks.

conclusionsThe prominent segmentation accuracy and run-time of CMG Net suggest that it is a reliable method for clinicians to observe anatomical structures of the hip joints, even in severely diseased cases.

Indexed as

Arthroplasty, Replacement, HipNeural Networks, ComputerAgedAged, 80 and overFemaleHip JointHumansMaleMiddle AgedPelvisPreoperative PeriodTomography, X-Ray Computed2D U-NetComputed tomographyDeep neural networkHip jointImage segmentation

Identifiers

PMID35292056
PMCPMC8922800
OpenAlexW4220955405

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.