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18FDG PET Textural Indices in Adrenal Lesion (ImpactTexture)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03469102
Recruitment Status : Completed
First Posted : March 19, 2018
Last Update Posted : July 30, 2018
Information provided by (Responsible Party):
University Hospital, Brest

Brief Summary:

Tumors are characterized by a great heterogeneity. Characterizing this intra-tumor heterogeneity is a major challenge in oncology to improve the therapeutic management and move towards personalized medicine adapted to each patient. However, intra-tumor heterogeneity remains rarely used for diagnostic purposes The discovery of an adrenal mass can occur in different circumstances. Detection of an adrenal mass can be done in a context of secreting syndrome, in the assessment of an extra-adrenal neoplasia or fortuitously when performing an imaging for another reason. The etiologies are numerous (cortical tumors, medullary tumors, metastatic lesion of a extra-adrenal neoplasia, others). The adrenal masses can be divided into two categories, depending on whether they are hyperfunctional or not. In patients without an oncological history, an adrenal mass discovered is most often a benign adenoma, but requires an endocrine assessment. In patients with known primary cancer, approximately 30% of the adrenal masses are malignant.

In all cases, the diagnostic procedure includes an imaging assessment to characterize the lesion and an endocrine assessment. CT scan performed without and after intravenous iodinated contrast agent injection is the first-line examination to assess an adrenal mass.

18F-FDG-PET may be indicated as second-line for characterizing an adrenal mass. Adrenal tumor SUVmax (Standard Uptake Value) and adrenal tumor SUVmax / liver SUVmax ratio are routinely used to determine the malignancy of a lesion. Although very useful for assessing the glucose metabolism of a given lesion, these parameters do not allow assessing the heterogeneity of tumor uptake. The texture analysis corresponds to an analysis of the spatial distribution of FDG uptake, and allows, by the calculation of many indices, an evaluation of the heterogeneity of the tumors.

The hypothesis of our study is that the texture parameters could have an additional diagnostic value to improve the performance of conventional quantitative parameters to determine the malignancy of a lesion.

The objective of this study is to investigate the diagnostic value of texture indices in a large cohort of patients presenting an adrenal lesion

Condition or disease
Adrenal Tumor

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Study Type : Observational
Actual Enrollment : 53 participants
Observational Model: Cohort
Time Perspective: Retrospective
Official Title: Diagnostic Value of 18FDG PET/CT Textural Indices in Patients With an Adrenal Lesion
Actual Study Start Date : March 1, 2018
Actual Primary Completion Date : July 1, 2018
Actual Study Completion Date : July 27, 2018

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Diagnostic performance of FDG PET/CT textural indices [ Time Frame: 6 months ]
    Area Under the Curve

Secondary Outcome Measures :
  1. Cut off value of FDG PET/CT textural indices [ Time Frame: 6 months ]
    For each cut off value : Sensibility(%)

  2. Cut off value of FDG PET/CT textural indices [ Time Frame: 6 months ]
    For each cut off value : Specificity(%)

  3. Cut off value of FDG PET/CT textural indices [ Time Frame: 6 months ]
    For each cut off value : Positive and Negative Predictive Value (%),

  4. Cut off value of FDG PET/CT textural indices [ Time Frame: 6 months ]
    For each cut off value : Accuracy (%)

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
presenting an adrenal lesion

Inclusion Criteria:

  • Having benefited from a 18-FDG PET-CT scan in the nuclear medicine department of University Hospital of Brest
  • Addressed in the context of an assessment of an adrenal lesion, in the evaluation of an extra-adrenal neoplasia or other motive
  • presenting an adrenal lesion
  • From June 29, 2012 to June 30, 2017

Exclusion Criteria:

  • Patients followed in another center than the University Hospital of Brest
  • Lesions of undetermined nature
  • Diagnosis of benignity or malignancy not confirmed by anatomopathology.
  • Patient having expressed his opposition to the use of his medical data

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03469102

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CHRU de Brest
Brest, France, 29609
Sponsors and Collaborators
University Hospital, Brest

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Responsible Party: University Hospital, Brest Identifier: NCT03469102     History of Changes
Other Study ID Numbers: Impact Texture Surrénale
First Posted: March 19, 2018    Key Record Dates
Last Update Posted: July 30, 2018
Last Verified: March 2018

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by University Hospital, Brest:
Positron emission tomography
Texture indices
Diagnostic performance
Additional relevant MeSH terms:
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Adrenal Gland Neoplasms
Endocrine Gland Neoplasms
Neoplasms by Site
Adrenal Gland Diseases
Endocrine System Diseases
Epinephryl borate
Fluorodeoxyglucose F18
Adrenergic alpha-Agonists
Adrenergic Agonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Adrenergic beta-Agonists
Bronchodilator Agents
Autonomic Agents
Peripheral Nervous System Agents
Anti-Asthmatic Agents
Respiratory System Agents
Vasoconstrictor Agents