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Clinical Value of CT Perfusion in Peripheral Artery Disease (iPAD)

8. september 2026 opdateret af: Zhijun Bao, Fudan University

Peripheral artery disease (PAD) affects millions worldwide and can lead to serious complications such as leg ulcers, gangrene, and amputation. Current imaging methods mainly evaluate large blood vessels but do not measure microcirculation in the foot. Computed tomography perfusion (CTP) is a new technique that can assess blood flow in small vessels.

The purpose of this study is to see whether combining CTP measurements with standard CT angiography images and patient clinical information can help predict which PAD patients are more likely to have poor outcomes after surgery to restore blood flow (revascularization). Poor outcomes include death or major limb problems such as amputation or need for another procedure.

This is an observational study. Researchers will collect data from about 200 adult PAD patients who are scheduled to undergo revascularization. Participants will receive routine care including CT scans before and after surgery. No experimental drugs or devices are given. Researchers will follow participants for up to 2 years after surgery through medical records and phone calls to track their recovery and any complications.

The results may help doctors identify high-risk patients earlier and improve treatment decisions.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

200

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

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

N/A

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

This study will enroll adult patients diagnosed with peripheral artery disease (PAD) who are scheduled to undergo vascular reconstruction (endovascular or surgical). Participants will receive CT perfusion imaging prior to the procedure. The study population aims to investigate the predictive value of CT perfusion parameters for postoperative adverse clinical events, with a planned follow-up period of 2 years.

Beskrivelse

Inclusion Criteria:

  • Diagnosis of peripheral artery disease (PAD) confirmed by clinical evaluation and imaging (e.g., CTA, DSA).
  • Planned to undergo endovascular or surgical revascularization.
  • Age ≥ 18 years old.
  • Signed written informed consent.

Exclusion Criteria:

  • Allergy to iodinated contrast agents.
  • Severe renal insufficiency (e.g., eGFR < 30 mL/min/1.73m²).
  • Acute limb ischemia requiring emergency surgery.
  • Major limb amputation already performed prior to enrollment.
  • Life expectancy less than 2 years due to severe comorbidities.
  • Unwilling or unable to complete the 2-year follow-up.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Predictive value of CT perfusion for adverse clinical events after revascularization
Tidsramme: From baseline (preoperative) assessment through 2 years after revascularization
Assessment of the predictive value of computed tomography perfusion (CTP) parameters combined with CT angiography and clinical data for postoperative adverse outcomes. Adverse clinical events are defined as all-cause mortality, major adverse limb events (including major amputation and target limb reintervention), or non-healing ulcers/gangrene. Data will be collected through medical records and follow-up visits.
From baseline (preoperative) assessment through 2 years after revascularization

Samarbejdspartnere og efterforskere

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

Sponsor

Fudan University

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 (Anslået)

1. november 2026

Primær færdiggørelse (Anslået)

30. september 2029

Studieafslutning (Anslået)

30. november 2029

Datoer for studieregistrering

Først indsendt

8. september 2026

Først indsendt, der opfyldte QC-kriterier

8. september 2026

Først opslået (Faktiske)

14. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

14. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

8. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2026K

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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