Evidence map›Paper›PMID 32544805›Full record

ArticleEuropean journal of radiology2020

Magnetic resonance imaging/transrectal ultrasonography fusion guided seed placement in a phantom: Accuracy between 2-seed versus 1-seed strategies.

Qian Li, Yu Duan, Masoud Baikpour, Theodore T Pierce, Colin J McCarthy, Ashraf Thabet, Suk-Tak Chan, Anthony E Samir

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

Article in European journal of radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

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 2 countries.

Qian LiDepartment of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, White 270, Boston, MA, 02114, USA. Electronic address: li.qian@mgh.harvard.edu.
Yu DuanDepartment of Medical Ultrasonics, the First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Yuexiu District, Guangzhou, Guangdong, 510080, China. Electronic address: kilody@foxmail.com.
Masoud BaikpourDepartment of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, White 270, Boston, MA, 02114, USA.
Theodore T PierceDepartment of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, White 270, Boston, MA, 02114, USA.
Colin J McCarthyInterventional Radiology, the University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1471, Houston, TX, 77030, USA.
Ashraf ThabetDepartment of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, White 270, Boston, MA, 02114, USA.
Suk-Tak ChanAthinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 149 Thirteenth Street, Charlestown, MA, 02129, USA.
Anthony E SamirDepartment of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, White 270, Boston, MA, 02114, USA. Electronic address: ASAMIR@mgh.harvard.edu.
Harvard University · USSun Yat-sen University · CNThe University of Texas MD Anderson Cancer Center · US

Funding

Reducing Variability in Hepatic Shear Wave ElastographyK23EB020710 · NIBIB · MASSACHUSETTS GENERAL HOSPITAL · PI SAMIR, ANTHONY EDWARD · 2016 to 2019
$781k
NIBIB NIH HHS K23 EB020710
6 · The paper itself

Abstract

purposeTo investigate whether the 2-seed placement per Magnetic Resonance Imaging (MRI) suspicious lesion yields a higher seed placement accuracy than a 1-seed strategy on a phantom.

methodsEight olives embedded in gelatin, each simulating a prostate, underwent MRI. Three virtual spherical lesions (3, 5, and 8 mm diameters) were marked in each olive on the MRI images and co-registered to the MRI/Transrectal Ultrasonography (TRUS) fusion biopsy system. Two radiologists placed 0.5 mm fiducials, targeting the center of each virtual lesion under fusion image guidance. Half of the 8 olives in each phantom were assigned either to the 1-seed or 2-seeds per lesion strategy. Post-procedure Computed Tomography (CT) images identified each seed and were fused with MR to localize each virtual lesion and collected the seed placement error - distance between the virtual target and the corresponding seed (using the closer seed for the 2-seed strategy). Seed placement success is defined as fiducial placement within a lesion boundary.

resultsEach operator repeated the procedure on three different phantoms, and data from 209 seeds placed for 137 lesions were analyzed, with an overall error of 3.03 ± 1.52 mm. The operator skill, operator phantom procedural experience, lesion size, and number of seeds, were independently associated with the seed placement error. Seed placement success rate was higher for the 2-seed group compared to 1-seed, although the difference was not statistically significant.

conclusionsPlacing 2 seeds per MRI lesion yielded a significantly lower error compared to 1-seed strategy, although seed placement success rate was not significantly different.

Indexed as

Phantoms, ImagingHumansImage-Guided BiopsyMagnetic Resonance ImagingMaleMultimodal ImagingProstatic NeoplasmsRectumReproducibility of ResultsUltrasonographyMagnetic resonance imagingPhantomProstate cancerUltrasound fusion biopsy

Identifiers

PMID32544805
PMCPMC7657060
OpenAlexW3034639927

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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.