Evidence map›Paper›PMID 31042994›Full record

ArticleThe Review of scientific instruments2019

A 4-channel, vector network analyzer microwave imaging prototype based on software defined radio technology.

Paul Meaney, Alexander Hartov, Selaka Bulumulla, Timothy Raynolds, Cynthia Davis, Florian Schoenberger, Sebastian Richter, Keith Paulsen

Abstract read
In one paragraph

Article in The Review of scientific instruments, 2019. 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
–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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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

8 authors.

Paul MeaneyThayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA.ORCID 0000000238525203
Alexander HartovThayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA.
Selaka BulumullaGlobal Foundries, Malta, New York 12020, USA.
Timothy RaynoldsThayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA.
Cynthia DavisGE Global Research Center, Niskayuna, New York 12309, USA.
Florian SchoenbergerThayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA.
Sebastian RichterThayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA.
Keith PaulsenThayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA.

Funding

Microwave Imaging for Neoadjuvant Chemotherapy MonitoringR01CA191227 · NCI · DARTMOUTH COLLEGE · PI MEANEY, PAUL M · 2015 to 2019
$3.6M
Simultaneous Microwave and MR Imaging for Improved Diagnosis of Breast AbnormalitiesR01CA240760 · NCI · DARTMOUTH COLLEGE · PI MEANEY, PAUL M, PAULSEN, KEITH D. · 2020 to 2024
$3.0M
NCI NIH HHS R01 CA191227NCI NIH HHS R01 CA240760
6 · The paper itself

Abstract

We have implemented a prototype 4-channel transmission-based, microwave measurement system built on innovative software defined radio (SDR) technology. The system utilizes the B210 USRP SDR developed by Ettus Research that operates over a 70 MHz-6 GHz bandwidth. While B210 units are capable of being synchronized with each other via coherent reference signals, they are somewhat unreliable in this configuration and the manufacturer recommends using N200 or N210 models instead. For our system, N-series SDRs were less suitable because they are not amenable to RF shielding required for the cross-channel isolation necessary for an integrated microwave imaging system. Consequently, we have configured an external reference that overcame these limitations in a compact and robust package. Our design exploits the rapidly evolving technology being developed for the telecommunications environment for test and measurement tasks with the higher performance specifications required in medical microwave imaging applications. In a larger channel configuration, the approach is expected to provide performance comparable to commercial vector network analyzers at a fraction of the cost and in a more compact footprint.

Identifiers

PMID31042994
PMCPMC6483785

What OpenQuestion holds

Textmetadata
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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.