Evidence map›Paper›PMID 27003138›Full record

ArticleEuropean radiology2016

A retrospective, semi-quantitative image quality analysis of cone beam computed tomography (CBCT) and MSCT in the diagnosis of distal radius fractures.

H Lang, J Neubauer, B Fritz, E M Spira, J Strube, M Langer, E Kotter

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In one paragraph

Article in European radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.

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  7. Flat-panel conebeam CT in the clinic: history and current state.Journal of medical imaging (Bellingham, Wash.) · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

H LangDepartment of Radiology, University Medical Center Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
J NeubauerDepartment of Radiology, University Medical Center Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany. jakob.neubauer@uniklinik-freiburg.de.
B FritzDepartment of Radiology, University Medical Center Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
E M SpiraDepartment of Radiology, University Medical Center Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
J StrubeDepartment of Radiology, University Medical Center Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
M LangerDepartment of Radiology, University Medical Center Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
E KotterDepartment of Radiology, University Medical Center Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
University Medical Center Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare image quality and diagnostic validity of CBCT and MSCT for distal radius fractures.

methods35 CBCT and 33 MSCT scans were retrospectively reviewed with a visual grading scale regarding the depiction of cortical bone, trabecular bone, articular surfaces, and soft tissue. The extent and type of artefacts was analyzed. Agreement on AO classification and measurement of cortical disruption and length of the fracture gap was determined. Fracture reduction was evaluated in post-treatment x-rays. Statistical analysis was performed with visual grading characteristics (VGC), chi square tests, and Kendall's coefficient of concordance.

resultsCBCT performed significantly worse for cortical bone, articular surfaces, and especially soft tissue. Trabecular bone showed no significant difference. Significantly more CBCT images showed artefacts. Physics-based artefacts were the most common. CBCT scans also showed motion artefacts. There was no significant difference in agreement on AO classification. The agreement on measurements was substantial for both modalities. Slightly more fractures that had undergone MSCT imaging showed adequate reduction.

conclusionThis initial study of an orthopaedic extremity CBCT scanner showed that the image quality of a CBCT scanner remains inferior for most structures at standard settings. Diagnostic validity of both modalities for distal radius fractures seems similar. KEY POINTS: • Subjectively, CBCT remains inferior to MSCT in depicting most structures. • Similar diagnostic validity for CBCT and MSCT imaging of distal radius fractures. • CBCT is a possible alternative to MSCT in musculoskeletal imaging. • Visual grading characteristics (VGC) analysis proves useful in analyzing visual grading scales.

Indexed as

AdultAgedArea Under CurveCancellous BoneCone-Beam Computed TomographyHumansMiddle AgedMultidetector Computed TomographyRadius FracturesRetrospective StudiesSensitivity and SpecificityCone beam computed tomographyMultislice computed tomographyMusculoskeletal systemOrthopaedicsRadius fracture

Identifiers

PMID27003138
OpenAlexW2308511844

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.