Evidence map›Paper›PMID 28959083›Full record

ArticleNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment2017

Characterization of Continuous and Pulsed Emission modes of a Hybrid Micro Focus X-ray Source for Medical Imaging Applications.

Muhammad U Ghani, Molly D Wong, Liqiang Ren, Di Wu, Bin Zheng, John X Rong, Xizeng Wu, Hong Liu

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

4 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Image quality assessment of a photon counting detector in x-ray projection imaging.Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment · 2019
    Article
  3. Tutorial on X-ray photon counting detector characterization.Journal of X-ray science and technology · 2018
    Review
  4. 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 at 3 institutions in 1 country.

Muhammad U GhaniCenter for Biomedical Engineering and School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK, 73019, USA.
Molly D WongCenter for Biomedical Engineering and School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK, 73019, USA.
Liqiang RenCenter for Biomedical Engineering and School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK, 73019, USA.
Di WuCenter for Biomedical Engineering and School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK, 73019, USA.
Bin ZhengCenter for Biomedical Engineering and School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK, 73019, USA.
John X RongDepartment of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
Xizeng WuDepartment of Radiology, University of Alabama at Birmingham, Birmingham, AL, 35249, USA.
Hong LiuCenter for Biomedical Engineering and School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK, 73019, USA.
University of Oklahoma · USThe University of Texas MD Anderson Cancer Center · USUniversity of Alabama at Birmingham · US

Funding

Clinical Translation of High Energy Phase-Sensitive X-ray Breast TomosynthesisR01CA193378 · NCI · UNIVERSITY OF OKLAHOMA · PI FAJARDO, LAURIE L, JING, ZHENXUE · 2015 to 2019
$3.0M
NCI NIH HHS R01 CA193378
6 · The paper itself

Abstract

The aim of this study was to quantitatively characterize a micro focus x-ray tube that can operate in both continuous and pulsed emission modes. The micro focus x-ray source (Model L9181-06, Hamamatsu Photonics, Japan) has a varying focal spot size ranging from 16-50 μm as the source output power changes from 10-39 W. We measured the source output, beam quality, focal spot sizes, kV accuracy, spectra shapes and spatial resolution. Source output was measured using an ionization chamber for various tube voltages (kVs) with varying current (μA) and distances. The beam quality was measured in terms of half value layer (HVL), kV accuracy was measured with a non-invasive kV meter, and the spectra was measured using a compact integrated spectrometer system. The focal spot sizes were measured using a slit method with a CCD detector with a pixel pitch of 22 μm. The spatial resolution was quantitatively measured using the slit method with a CMOS flat panel detector with a 50 μm pixel pitch, and compared to the qualitative results obtained by imaging a contrast bar pattern. The focal spot sizes in the vertical direction were smaller than that of the horizontal direction, the impact of which was visible when comparing the spatial resolution values. Our analyses revealed that both emission modes yield comparable imaging performances in terms of beam quality, spectra shape and spatial resolution effects. There were no significantly large differences, thus providing the motivation for future studies to design and develop stable and robust cone beam imaging systems for various diagnostic applications.

Indexed as

beam qualitycontinuous beamPulsed beam emissionspatial resolution

Identifiers

PMID28959083
PMCPMC5612449
OpenAlexW2587797854

What OpenQuestion holds

Textmetadata
LicenceTDM
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.