Evidence map›Paper›PMID 31745632›Full record

ArticleSurgical endoscopy2020

Semi-automated vs. manual 3D reconstruction of central mesenteric vascular models: the surgeon's verdict.

Javier A Luzon, Rahul P Kumar, Bojan V Stimec, Ole Jakob Elle, Arne O Bakka, Bjørn Edwin, Dejan Ignjatovic

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Trial
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  7. Value of the surgeon's sightline on hologram registration and targeting in mixed reality.International journal of computer assisted radiology and surgery · 2020
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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

7 authors.

Javier A LuzonInstitute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway. jaluzon@gmail.com.ORCID 0000-0002-6805-7076
Rahul P KumarThe Intervention Centre, Oslo University Hospital, Oslo, Norway.
Bojan V StimecFaculty of Medicine, Teaching Unit, Anatomy Sector, University of Geneva, Geneva, Switzerland.
Ole Jakob ElleThe Intervention Centre, Oslo University Hospital, Oslo, Norway.
Arne O BakkaInstitute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
Bjørn EdwinInstitute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
Dejan IgnjatovicInstitute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background3D vascular anatomy roadmaps are currently being implemented for surgical planning and navigation. Quality of the reconstruction is critical. The aim of this article is to compare anatomical completeness of models produced by manual and semi-automatic segmentation.

methodsCT-datasets from patients included in an ongoing trial, underwent 3D vascular reconstruction applying two different segmentation methods. This produced manually-segmented models (MSMs) and semi-automatically segmented models (SAMs) which underwent a paired comparison. Datasets were delivered for reconstruction in 4 batches of 6, of which only batch 4 contained patients with abnormal anatomy. Model completeness was assessed quantitatively using alignment and distance error indexes and qualitatively with systematic inspection. MSMs were the gold standard. Assessed vessels were those of interest to the surgeon performing D3-right colectomy.

results24 CT-datasets (13 females, age 44-77) were used in a paired comparative analysis of 48 3D-models. Quantitatively, SAMs showed structural improvement from Batch 1 to 3. Batch 4, with abnormal vessels, showed the highest error-index values. Qualitatively, 91.7% of SAMs did not contain all mesenteric branches relevant to the surgeon. In SAMs, 1 (12.5%) right colic artery-RCA scored as a complete vessel. 3 (37.5%) RCAs scored as incomplete and 4 (50%) RCAs were absent. 6 (25%) of 24 middle colic arteries-MCA scored as complete vessels. 11 (45.8%) scored as incomplete while 7 (29.2%) MCAs were absent. 13 (54.2%) of 24 ileocolic arteries-ICA were complete vessels. 11 (45.8%) scored as incomplete. None (0%) were absent. Additionally, it was observed that 10 (41.7%) of SAMs contained all their jejunal arteries, when compared to MSMs. Calibers of "complete" vessels were significantly higher than in "missing" vessels (MCA p < 0.001, RCA p = 0.016, ICA p < 0.001, JAs p < 0.001).

conclusionDespite acceptable results from quantitative analysis, qualitative comparison indicates that semi-automatically generated 3D-models of the central mesenteric vasculature could cause considerable confusion at surgery.

Indexed as

Models, AnatomicAdultAgedColectomyFemaleHumansImaging, Three-DimensionalMaleMesenteric Artery, SuperiorMesenteric VeinsMesenteryMiddle AgedSurgeonsSurgery, Computer-AssistedTomography, X-Ray Computed3D modelingColorectal surgeryImage-guided surgeryPatient-specific computational modelingPersonalized medicine

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Registered trials

None linked

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.