Effect of Three Side Hole Infusion Catheter on CT Image Quality Compared to a Standard Infusion Catheter
2018年5月3日 更新者：Joseph P Hasapes、The University of Texas Health Science Center, Houston
IV Contrast Administration: Effect of Three Side Hole Infusion Catheter on CT Image Quality, Infusion Pressure, and Infusion Rates, Compared to a Standard Infusion Catheter
The purpose of this research study is to compare two types of catheters used for infusing the contrast dye necessary for viewing internal organs during computed tomography (CT) scanning.
The standard catheter, which has one hole from which contrast dye enters veins, will be compared to the Becton Dickinson Nexiva Diffusics System catheter, which has three holes for diffusing dye into veins.
The purpose of this study is to determine which catheter type gives the best image.
調査の概要
状態
完了
詳細な説明
This will be a prospective, randomized, controlled trial.
The catheter is already in use at our facilities.
After informed consent, patients will be randomly given the standard or new catheter in our practice.
Envelopes with the random assignment will be available to the individuals consenting patients.
Randomization generally ensures that study groups are similar on average.
As age, sex, and weight impact image quality, we will collect data on these factors in case randomization results in an imbalance.
This will allow for control of these factors in analysis of the data.
Data will be collected from CT abdomen pelvis examinations within a 6 month-1 year period in 2016 - 2017.
Our primary outcome is image quality, measured as tissue density and distribution of contrast within the liver, spleen, aorta and IVC.
Our secondary outcomes include Peak Contrast Infusion Pressure and Injection Flow Rate.
Possible adverse events for use of any type of catheter include contrast infiltration into the subcutaneous tissues which is a minor limited event.
All infiltrations will be recorded as part of the permanent medical record, documented in the chart, and the referring physician notified.
The patient will be assessed by a physician immediately and referred to the ED if necessary for further evaluation.
Current technology utilizes Power injector equipment which alerts the technologist to the pressure being achieved.
If the injection pressure exceeds 325 psi the Power injector automatically shuts off.
研究の種類
介入
入学 (実際)
61
段階
- 適用できない
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
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Texas
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Houston、Texas、アメリカ、77030
- The University of Texas Health Science Center at Houston
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
適格基準
就学可能な年齢
18年歳以上 (大人、高齢者)
健康ボランティアの受け入れ
いいえ
受講資格のある性別
全て
説明
Inclusion Criteria:
- Patients undergoing contrast enhanced CT abdomen pelvis examinations at Lyndon B. Johnson General Hospital in Texas
- Patients whose access point is the antecubital fossa
- Patients receiving 20 or 22 gauge catheters for their CT exam
- Patients scanned on two 64 slice CT scanners at the same hospital
Exclusion Criteria:
- patients whose access point is other than antecubital fossa
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
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：ランダム化
- 介入モデル：並列代入
- マスキング：トリプル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：Becton Dickinson Nexiva Diffusics System
Intervention with the new Becton Dickinson Nexiva Diffusics System will be evaluated to see if it will improve image quality compared to the standard catheter.
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Becton Dickinson Nexiva Diffusics System will be used to inject IV contrast and will be compared to a single hole catheter to see if it improves image quality in the main vessels in the abdomen and pelvis because of its novel design.
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アクティブコンパレータ：Standard intravenous catheter
Standard catheter with one hole at the tip will be compared to novel 3 hole Becton Dickinson Nexiva Diffusics System to see which catheter provides the best image quality.
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Standard catheter with one hole at the tip will be compared to a novel 3 hole catheter to see which catheter provides the best image quality.
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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
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Image Quality as Assessed by Ratio of Tissue Density of Main Portal Vein (MPV) to the Aorta
時間枠：at the time of CT scanning
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The ratio of tissue density measured in the main portal vein (MPV) to tissue density in the aorta on the CT images will be determined and will provide a measure of biodistribution, which is an important indicator of image quality.
Dividing each Hounsfield unit measurement by the aorta density and determining these ratios will be done on a per patient basis to assess biodistribution as a measure of image quality.
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at the time of CT scanning
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Image Quality as Assessed by Ratio of Tissue Density of Spleen to the Aorta
時間枠：at the time of CT scanning
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The ratio of tissue density measured in the spleen to tissue density in the aorta on the CT images will be determined and will provide a measure of biodistribution, which is an important indicator of image quality.
Dividing each Hounsfield unit measurement by the aorta density and determining these ratios will be done on a per patient basis to assess biodistribution as a measure of image quality.
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at the time of CT scanning
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Image Quality as Assessed by Ratio of Tissue Density of Inferior Vena Cava (IVC) to the Aorta
時間枠：at the time of CT scanning
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The ratio of tissue density measured in the inferior vena cava (IVC) to tissue density in the aorta on the CT images will be determined and will provide a measure of biodistribution, which is an important indicator of image quality.
Dividing each Hounsfield unit measurement by the aorta density and determining these ratios will be done on a per patient basis to assess biodistribution as a measure of image quality.
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at the time of CT scanning
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Image Quality as Assessed by Rating Scale
時間枠：at the time of CT scanning
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Radiologists blinded to catheter type will review images and rate them on a scale of 1 to 10. 10 indicates a better outcome.
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at the time of CT scanning
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Peak Contrast Infusion Pressure
時間枠：at the time of CT scanning
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The peak contrast infusion pressure is recorded in the electronic health record (EHR) during every CT examination preformed at the hospitals taking part in this study.
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at the time of CT scanning
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Injection Flow Rate
時間枠：at the time of CT scanning
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The injection flow rate is recorded in the electronic health record (EHR) during every CT examination preformed at the hospitals taking part in this study.
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at the time of CT scanning
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協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
捜査官
- 主任研究者：Joseph Hasapes, MD、The University of Texas Health Science Center, Houston
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (実際)
2016年10月1日
一次修了 (実際)
2016年11月1日
研究の完了 (実際)
2016年11月1日
試験登録日
最初に提出
2016年10月20日
QC基準を満たした最初の提出物
2016年10月20日
最初の投稿 (見積もり)
2016年10月24日
学習記録の更新
投稿された最後の更新 (実際)
2018年6月6日
QC基準を満たした最後の更新が送信されました
2018年5月3日
最終確認日
2018年5月1日
詳しくは
本研究に関する用語
その他の研究ID番号
- HSC-MS15-0906
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。