Comparison of 3 Tesla MRI to 7 Tesla MRI for Evaluation of Prostate Suspicion Lesions
A comparison of 3 Tesla MRI to 7 Tesla MRI for Evaluation of Prostate Suspicious Lesions.
Assess the added diagnostic value of ultra-high-field (7T) MRI over the current clinical standard (3T MRI) in detecting and characterizing suspicious prostate lesions. Evaluate whether dynamic deuterated glucose-enhanced imaging at 7T can offer improved contrast without the use of gadolinium-based agents.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- 適用できない
連絡先と場所
研究連絡先
研究連絡先
- 名前:Shai Efrati, MD
- 電話番号:972549212866
- メール:efratishai@outlook.com
研究場所
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Israel
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Zrifin、Israel、イスラエル、70300
- The Sagol Center for Hyperbaric Medicine and Research Shamir Medical Center (Assaf Harofeh)
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コンタクト:
- Shai Efrati, Prof
- 電話番号:+972-8-9779393
- メール:efratishai@outlook.com
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参加基準
適格基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- male patients referred for clinical 3T prostate MRI at Shamir Medical Center
- male patients who consent to undergo an additional 7T scan at the Weizmann Institute.
Exclusion Criteria:
- Contraindications to MRI (e.g., non-compatible implants, pacemakers, severe claustrophobia)
- diabetes mellitus
- glucose intolerance
- hyperglycemia
- hyperlactatemia
- chronic kidney disease (GFR <45 mL/min/1.73 m2).
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:診断
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
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実験的:3 Tesla (3T) versus 7 Tesla (7T) MRI in the assessment of suspicious prostate lesions
Each participant serves as their own control, undergoing both 3T and 7T MRI scans.
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Imaging protocols will include multiparametric sequences at both field strengths, with the addition of high-resolution anatomical and optional dynamic glucose-enhanced imaging at 7T.
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この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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ROC analysis of diagnostic performance: 3T versus 7T MRI
時間枠:Assessed at the time of MRI acquisition during the study imaging visit.
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ROC analysis (Receiver Operating Characteristic analysis) - A statistical method used to evaluate and compare diagnostic accuracy.
It examines how well a test distinguishes between diseased and non-diseased cases across different thresholds.
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Assessed at the time of MRI acquisition during the study imaging visit.
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Sensitivity and Specificity of diagnostic performance: 3T versus 7T MRI
時間枠:Assessed at the time of MRI acquisition during the study imaging visit.
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Sensitivity - The ability of the MRI to correctly identify patients who truly have disease (true positive rate). High sensitivity means fewer missed cases. Specificity - The ability of the MRI to correctly identify patients who do not have disease (true negative rate). High specificity means fewer false alarms or false positives. |
Assessed at the time of MRI acquisition during the study imaging visit.
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Lesion conspicuity of diagnostic performance: 3T versus 7T MRI
時間枠:Assessed at the time of MRI acquisition during the study imaging visit.
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How clearly and visibly an abnormal lesion can be seen on MRI images compared with surrounding tissue.
Higher conspicuity generally makes lesions easier to detect and characterize.
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Assessed at the time of MRI acquisition during the study imaging visit.
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PI-RADS classification - The Prostate Imaging Reporting and Data System: 3T versus 7T MRI
時間枠:Assessed at the time of MRI acquisition during the study imaging visit.
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a standardized scoring system used in prostate MRI to estimate the likelihood of clinically significant prostate cancer.
Scores range from 1 (very low likelihood) to 5 (very high likelihood).
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Assessed at the time of MRI acquisition during the study imaging visit.
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Quantitative imaging metrics of diagnostic performance: 3T versus 7T MRI
時間枠:Assessed at the time of MRI acquisition during the study imaging visit.
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Numerical measurements derived from MRI images, such as lesion size, signal intensity, contrast ratios, diffusion values (e.g., ADC), or texture features, used to objectively compare imaging performance.
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Assessed at the time of MRI acquisition during the study imaging visit.
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協力者と研究者
捜査官
捜査官
- 主任研究者:Shai Efrati、Asaf-Harofhe MC
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。