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The Prone to Supine Breast MRI Trial

26. august 2021 opdateret af: Timothy B. Rooney, Dartmouth-Hitchcock Medical Center
The purpose of this study is to determine whether a supine MRI obtained immediately after a standard diagnostic prone MRI exam, without a second injection of gadolinium (Gd) contrast material, would be of sufficient quality to allow the Radiologist to define the tumor edges ("segment" the tumor) so that a 3-D image of the tumor can be generated to form a BCL.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The purpose of this study is to find out whether additional MRI images taken with patients in a different position after completing a standard MRI are of sufficient quality to allow a radiologist to identify the edges of the tumor.

These additional MRI images will only take about 10-15 minutes to obtain and will not require a second injection of contrast material.The information gathered in this study will make it more feasible to use a new device called the "breast cancer locator" to help surgeons more accurately remove breast cancers.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

72

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • New Hampshire
      • Lebanon, New Hampshire, Forenede Stater, 03756
        • Dartmouth Hitchcock Medical Center

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

Inclusion Criteria:

  • Age > 18 years.
  • Female gender.
  • Histologic diagnosis of invasive breast cancer or ductal carcinoma in situ
  • Tumor size at least 1 cm in diameter as visualized on mammogram or US.
  • A diagnostic breast MRI is considered to be clinically indicated.
  • Ability to voluntarily provide informed consent to participate prior to any study-related assessments/procedures being conducted.

Exclusion Criteria:

  • Absolute contraindication to MRI, including presence of implanted electrical device (pacemaker or neurostimulator), aneurysm clip, or metallic foreign body in or near eyes.
  • Severe claustrophobia.
  • Contraindication to use of gadolinium-based intravenous contrast, including life- threatening allergy or compromised renal function (eGFR < 30 ml/min/1.73m2).
  • History of median sternotomy.
  • Pregnancy. Patient attestation that they are not pregnant will be acceptable.
  • Patients who have received neoadjuvant chemotherapy.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Prone to Supine MRI
The patient will be placed in the prone position and undergo a standard Gd contrast-enhanced bilateral breast MRI. Immediately after the prone MRI is completed, the patient will be repositioned for the supine MRI. Prior to starting the prone MRI, the study MRI technician/investigator will explain to the patient and practice with the patient the steps needed to transition from the prone to the supine MRI, so as to facilitate a timely transition. Additional MRI images will only take about 10-15 minutes to obtain and will not require a second injection of contrast material.
Andet: Prone to Supine MRI
The patient will be placed in the prone position and undergo a standard Gd contrast-enhanced bilateral breast MRI. Immediately after the prone MRI is completed, the patient will be repositioned for the supine MRI. Prior to starting the prone MRI, the study MRI technician/investigator will explain to the patient and practice with the patient the steps needed to transition from the prone to the supine MRI, so as to facilitate a timely transition. Additional MRI images will only take about 10-15 minutes to obtain and will not require a second injection of contrast material.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Number of Successful Segmentation of Supine MRI Images
Tidsramme: 30 minutes
Determine what number of cases that can be successfully segmented both from using post-contrast prone MRI images and also from using post contrast supine MRI images.
30 minutes

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Enhancement Quantification, as Measured by Signal Intensity - Segmented Tumor
Tidsramme: 30 minutes
Compare the signal intensity with that obtained at tumor location on the prone and supine imaging. The amount of enhancement at the tumor site = segmented tumor.
30 minutes
Enhancement Quantification, as Measured by Signal Intensity - Tumor Boundary
Tidsramme: 30 minutes
Compare the signal intensity with that obtained in benign tissue surrounding the tumor on the prone and supine imaging.
30 minutes
Enhancement Quantification- Tumor-to-Background Ratio
Tidsramme: 30 minutes
Mean MRI signal of the segmented tumor divided by the mean MRI signal of the surrounding tissue which has an equal volume to the tumor. The difference between tumor and benign breast tissue is the tumor-to-background ratio
30 minutes
Time to Position and Obtain Supine Images
Tidsramme: 30 Minutes
Calculate the additional time needed to obtain supine MRI images. After the completion of Prone imaging, the patient was removed from the MRI, turned over to the supine position, new coils placed, and returned to the MRI for additional imaging. The aggregate time to accomplish these tasks are noted in minutes.
30 Minutes
Overall Comfort for Prone and Supine Positions
Tidsramme: Within 15 minutes of the scan
Quantify the perceived comfort level of the prone and supine MRI as reported by participants. A single question using a Likert scale was was used. The scale range was 0 to 5, where 0 = no pain, completely comfortable and 5 = considerable discomfort.
Within 15 minutes of the scan

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Dartmouth-Hitchcock Medical Center

Efterforskere

  • Ledende efterforsker: Timothy B Rooney, MD, Dartmouth-Hitchcock Medical Center

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

12. juli 2018

Primær færdiggørelse (Faktiske)

31. juli 2020

Studieafslutning (Faktiske)

31. juli 2020

Datoer for studieregistrering

Først indsendt

19. juni 2018

Først indsendt, der opfyldte QC-kriterier

19. juni 2018

Først opslået (Faktiske)

29. juni 2018

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

30. august 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

26. august 2021

Sidst verificeret

1. august 2021

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • D17168

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

Ingen

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Brystkræft

Kliniske forsøg med Prone to Supine MRI

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Betingelser

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Placeringer

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