- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT03307694
Thyroid Ultrasound Elasticity (TrUE) Imaging
Multi-Angle Compound Shear Wave Elasticity Imaging for the Characterization of Thyroid Nodules
Studieoversikt
Status
Forhold
Detaljert beskrivelse
Thyroid ultrasound is a first-line procedure to assess patients with thyroid nodules. Unfortunately, standard ultrasound has low sensitivity, and thus low positive predictive value, for malignancy and many patients with thyroid nodules are referred for additional imaging studies or biopsy. Shear wave elasticity imaging (SWEI) is a non-invasive ultrasound technology that allows clinicians to assess the stiffness of tissues. In many solid tumors, increased stiffness is highly specific for underlying malignancy, and preliminary studies have shown this to be true for thyroid malignancies. Both standard sonography and SWEI can be performed on the same ultrasound equipment and within the same imaging session. Therefore, integrating SWEI into standard thyroid diagnostic workflow is a logical approach towards improving the positive predictive value of these first-line sonographic studies. Other studies have demonstrated the ability of SWEI techniques to differentiate benign from malignant thyroid nodules. However, shear wave techniques still need to overcome challenges before they can be successfully integrated into the clinical paradigm. These techniques still struggle to accurately classify follicular carcinomas and few have been validated in patients with multiple thyroid lesions, a scenario which is clinically common. The researchers believe that a multi-angle compound SWEI (MAC-SWEI) algorithm, which generates shear images based on multiple angled push beams, has the potential to generate more accurate shear wave images in the context of thyroid imaging. To this end, this study will perform proof-of-concept studies of MAC-SWEI in thyroid patients undergoing standard ultrasound scans and compare the results of shear wave images to results from corresponding pathology.
Study participants will undergo a single SWEI session within their normally-scheduled preadmission testing during which both standard b-mode and shear images of the thyroid nodule(s) will be acquired. The 36 patients will be randomized to receive MAC-SWEI, standard SWEI, and ultrasound, or only standard SWEI and ultrasound.
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
-
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Georgia
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Atlanta, Georgia, Forente stater, 30308
- Emory Univeristy Hospital Midtown
-
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- Age ≥ 18 years old
- Scheduled to undergo a thyroid biopsy, thyroidectomy, or cervical node biopsy
Exclusion Criteria:
- None
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
---|---|
MAC-SWEI, standard SWEI, ultrasound
Participants in this group will receive all three imaging techniques
|
All ultrasound images will be acquired by an in-house ultrasound technologist using a Verasonics Vantage (Verasonics Inc., Kirkland, Washington, USA) ultrasound system.
During imaging, the technologist will position the Verasonics transducer, under b-mode guidance, in planes overlying the thyroid nodules approximating those obtained during previous clinical ultrasound scans.
Shear wave elasticity imaging (SWEI) is obtained during the standard ultrasound session.
The generation of shear wave images consists of two important steps called "pushing" and "tracking".
First, in the "pushing" mode, a long focused ultrasound beam is transmitted to perturb tissue, generating ultrasonic shear waves in tissue that propagate perpendicular to the direction of pushing.
In the "tracking" mode, shear wave propagation is observed and recorded.
Because the speed of shear waves is a function of Young's modulus, these data reveal information about the stiffness of underlying biological tissue.
Andre navn:
The multi-angle compound SWEI (MAC-SWEI) algorithm, which generates shear images based on multiple angled push beams, has the potential to generate more accurate shear wave images in the context of thyroid imaging.
To assess the MAC-SWEI technique, shear wave images will be used to generate estimates of the relative stiffness of lesions via their normalized Young's modulus.
Andre navn:
|
Standard SWEI, ultrasound
Participants in this group will receive two imaging techniques
|
All ultrasound images will be acquired by an in-house ultrasound technologist using a Verasonics Vantage (Verasonics Inc., Kirkland, Washington, USA) ultrasound system.
During imaging, the technologist will position the Verasonics transducer, under b-mode guidance, in planes overlying the thyroid nodules approximating those obtained during previous clinical ultrasound scans.
Shear wave elasticity imaging (SWEI) is obtained during the standard ultrasound session.
The generation of shear wave images consists of two important steps called "pushing" and "tracking".
First, in the "pushing" mode, a long focused ultrasound beam is transmitted to perturb tissue, generating ultrasonic shear waves in tissue that propagate perpendicular to the direction of pushing.
In the "tracking" mode, shear wave propagation is observed and recorded.
Because the speed of shear waves is a function of Young's modulus, these data reveal information about the stiffness of underlying biological tissue.
Andre navn:
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Determination of Malignancy by SWEI Imaging
Tidsramme: Pre-operative visit (within 24 hours before surgery, on average)
|
As part of the pre-operative visit, participants will have imaging of their thyroid nodules.
Established SWEI and MAC-SWEI techniques will be performed to identify malignant thyroid tissue.
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Pre-operative visit (within 24 hours before surgery, on average)
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Determination of Malignancy by Pathological Proof
Tidsramme: Post-surgery (within 10 days after surgery, on average)
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Tissue samples obtained during the participant's thyroid biopsy, thyroidectomy, or cervical node biopsy will be submitted to the pathology lab as part of the clinical standard of care.
The pathology report will specify whether or not malignant cells were found in the tissue sample.
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Post-surgery (within 10 days after surgery, on average)
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Accuracy of differentiating benign from malignant lesions between SWEI techniques
Tidsramme: Pre-operative visit (within 24 hours before surgery, on average)
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The ability of MAC-SWEI to differentiate benign from malignant lesions will be compared to the ability of standard SWEI to make this differentiation.
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Pre-operative visit (within 24 hours before surgery, on average)
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Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Stanislav Emelianov, PhD, Emory University
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- IRB00092785
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
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