Evidence map›Paper›PMID 26685229›Full record

ArticleIEEE transactions on medical imaging2016

Efficient Small Blob Detection Based on Local Convexity, Intensity and Shape Information.

Min Zhang, Teresa Wu, Scott C Beeman, Luise Cullen-McEwen, John F Bertram, Jennifer R Charlton, Edwin Baldelomar, Kevin M Bennett

Abstract read
In one paragraph

Article in IEEE transactions on medical imaging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Small Blob Detector Using Bi-Threshold Constrained Adaptive Scales.IEEE transactions on bio-medical engineering · 2021
    Article
  8. Article
  9. Nephron number and its determinants: a 2020 update.Pediatric nephrology (Berlin, Germany) · 2021
    Article
  10. Article
  11. In vivo measurements of kidney glomerular number and size in healthy and OsAmerican journal of physiology. Renal physiology · 2019
    Article
  12. Article
  13. Article
  14. MRI tools for assessment of microstructure and nephron function of the kidney.American journal of physiology. Renal physiology · 2016
    Review
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

8 authors.

Min Zhang
Teresa Wu
Scott C Beeman
Luise Cullen-McEwen
John F Bertram
Jennifer R Charlton
Edwin Baldelomar
Kevin M Bennett

Funding

MRI Techniques to Measure Whole-Kidney NephronR21DK091722 · NIDDK · UNIVERSITY OF HAWAII AT MANOA · PI BENNETT, KEVIN M · 2012 to 2013
$399k
NIDDK NIH HHS DK091722NIDDK NIH HHS R21 DK091722
6 · The paper itself

Abstract

The identification of small structures (blobs) from medical images to quantify clinically relevant features, such as size and shape, is important in many medical applications. One particular application explored here is the automated detection of kidney glomeruli after targeted contrast enhancement and magnetic resonance imaging. We propose a computationally efficient algorithm, termed the Hessian-based Difference of Gaussians (HDoG), to segment small blobs (e.g., glomeruli from kidney) from 3D medical images based on local convexity, intensity and shape information. The image is first smoothed and pre-segmented into small blob candidate regions based on local convexity. Two novel 3D regional features (regional blobness and regional flatness) are then extracted from the candidate regions. Together with regional intensity, the three features are used in an unsupervised learning algorithm for auto post-pruning. HDoG is first validated in a 2D form and compared with other three blob detectors from literature, which are generally for 2D images only. To test the detectability of blobs from 3D images, 240 sets of simulated images are rendered for scenarios mimicking the renal nephron distribution observed in contrast-enhanced, 3D MRI. The results show a satisfactory performance of HDoG in detecting large numbers of small blobs. Two sets of real kidney 3D MR images (6 rats, 3 human) are then used to validate the applicability of HDoG for glomeruli detection. By comparing MRI to stereological measurements, we verify that HDoG is a robust and efficient unsupervised technique for 3D blobs segmentation.

Indexed as

AlgorithmsAnimalsHumansImaging, Three-DimensionalKidneyMagnetic Resonance ImagingRatsRats, Sprague-Dawley

Identifiers

PMID26685229
PMCPMC6991892

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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.