Evidence map›Paper›PMID 28819680›Full record

ArticleNeuroradiology2017

Quantitative approach to the posterior cranial fossa and craniocervical junction in asymptomatic children with achondroplasia.

Rosalinda Calandrelli, Marco Panfili, Gabriella D'Apolito, Giuseppe Zampino, Alessandro Pedicelli, Fabio Pilato, Cesare Colosimo

Abstract read
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In one paragraph

Article in Neuroradiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Posterior fossa decompression in syndromic children with chiari-like posterior fossa crowding: a nationwide US-based study.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Article
  4. Article
  5. Methodology for pediatric head computed tomography image segmentation and volumetric calculation using a tablet computer and stylus pen.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  6. Achondroplasia: aligning mouse model with human clinical studies shows crucial importance of immediate postnatal start of the therapy.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2024
    Article
  7. Article
  8. Jugular foramen stenosis in external hydrocephalus in infants.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Thoracolumbar stenosis and neurologic symptoms: Quantitative MRI in achondroplasia.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2022
    Article
  14. Airways and craniofacial assessment in children affected by achondroplasia with and without sleep-disordered breathing: quantitative magnetic resonance study.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2022
    Article
  15. Article
  16. New insights in craniovertebral junction MR changes leading to stenosis in children with achondroplasia.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2022
    Article
  17. Review
  18. Functional and morphological changes in hypoplasic posterior fossa.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
    Review
  19. Review
  20. Macrocerebellum in Achondroplasia: A Further CNS Manifestation ofAJNR. American journal of neuroradiology · 2020
    Article
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.

Rosalinda CalandrelliPolo scienze delle immagini, di laboratorio ed infettivologiche, Area diagnostica per immagini, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, L.go F. Vito 1, 00168, Roma, Italia. rosalinda.calandrelli@policlinicogemelli.it.ORCID http://orcid.org/0000-0003-4517-3477
Marco PanfiliPolo scienze delle immagini, di laboratorio ed infettivologiche, Area diagnostica per immagini, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, L.go F. Vito 1, 00168, Roma, Italia.
Gabriella D'ApolitoPolo scienze delle immagini, di laboratorio ed infettivologiche, Area diagnostica per immagini, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, L.go F. Vito 1, 00168, Roma, Italia.
Giuseppe ZampinoPolo scienze della salute della donna e del bambino, Area salute del bambino, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli, L.go F. Vito 1, 00168, Roma, Italia.
Alessandro PedicelliPolo scienze delle immagini, di laboratorio ed infettivologiche, Area diagnostica per immagini, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, L.go F. Vito 1, 00168, Roma, Italia.
Fabio PilatoPolo scienze dell'invecchiamento, neurologiche, ortopediche e della testa-collo, Area neuroscienze, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, L.go F. Vito 1, 00168, Roma, Italia.
Cesare ColosimoPolo scienze delle immagini, di laboratorio ed infettivologiche, Area diagnostica per immagini, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, L.go F. Vito 1, 00168, Roma, Italia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe propose an magnetic resonance imaging (MRI)-based quantitative morphovolumetric approach to the posterior cranial fossa (PCF) and craniocervical junction (CCJ) changes in achondroplastic patients investigating possible associations with ventriculomegaly and medullary compression.

methodsWe analyzed MRI of 13 achondroplastic children not treated by surgery. 3D FSPGR T1-weighted images were used to analyze (1) PCF synchondroses; (2) PCF volume (PCFV), PCF brain volume (PCFBV), PCFV/PCFBV ratio, cerebellar volume, cerebrospinal fluid (CSF) spaces volume, and IV ventricle volume; (3) PCF (clivus, supraocciput, exocciput lengths, tentorial angle) and CCJ (AP and LL diameters of foramen magnum (FM)) morphometry; (4) measurements of FM and jugular foramina (JF) areas; and (5) supratentorial ventricular volume.

resultsAll patients showed synostosis of spheno-occipital synchondroses, eight showed synostosis of intra-occipital synchondroses, nine showed CCJ impingement on the cervical cord but only three had cervical myelopathy. Compared to controls, clivus and exocciput lengths, LL and AP diameters of FM, FM area and JF area were significantly reduced, supraocciput length, tentorial angle, PCFV, PCFBV, cerebellar volume, supratentorial ventricular system volume were significantly increased. A correlation was found between clivus length and supratentorial ventricular volume, premature closure of intra-occipital synchondroses and FM area while a trend was found between FM area and supraocciput length.

conclusionOur analysis demonstrates a relationship between the shortening of the clivus and the ventriculomegaly. On the other hand the premature closure of PCF synchondroses, the shape, and the growth direction of supraocciput bone contribute to reduce the FM area, causing in some patients medullary compression.

Indexed as

Imaging, Three-DimensionalAchondroplasiaCervical AtlasChild, PreschoolCranial Fossa, PosteriorFemaleHumansInfantMagnetic Resonance ImagingMaleCraniocervical junctionForamen magnumMagnetic resonance imaging (MRI)Posterior cranial fossaSynchondroses

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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.