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Found 19 clinical trials
Photoacoustic Computed Tomography for Pre-Operative Reconstructive Flap Angiography

The purpose of this study is to determine if a new non-invasive imaging technology, called Photoacoustic Computed Tomography (PACT), can be used in the pre-operative setting to better visualize the blood supply of reconstructive flaps used in Plastic Surgery.

  • 0 views
  • 29 Aug, 2021
  • 1 location
Screening Intracranial Aneurysms With Magnetic Resonance Angiography (MRA) in China

The Chinese Cerebral Aneurysms Survey is a continuing prospective study among middle-aged and older individuals (35 - 75 years) that aims to determine the prevalence of cerebral intracranial aneurysms in the general population with MRA at 3.0 Tesla (T).

magnetic resonance angiography
angiography
cerebral aneurysm
  • 14 views
  • 07 Nov, 2020
  • 1 location
Pre-test Probability FOCUS and D-dimer for Acute Aortic Syndromes

Observational, prospective, multicentre, international, non-profit, investigator-driven, diagnostic accuracy study performed in several international EDs. The aim of the study will be to evaluate the performance of an integrated algorithm based on aortic dissection risk score, focus cardiac ultrasound and D-dimer to rule-in and -out acute aortic syndromes. The final diagnosis …

  • 0 views
  • 31 Jul, 2021
  • 13 locations
Comparison of Magnetic Resonance Coronary Angiography (MRCA) With Coronary Computed Tomography Angiography (CTA)

Magnetic resonance coronary angiography (MRCA) has its advantage in its ability to assess the coronary artery morphology without radiation or contrast media. The clinical application of MRCA is still challenging mainly because of technical limitations such as: its time-consuming image acquisition, inconsistent image quality, and low spatial resolution. Optimization of …

  • 0 views
  • 26 Apr, 2021
  • 1 location
Whole Body Magnetic Resonance Angiography in Ischemic Patients

To investigate the diagnostic performance of whole body magnetic resonance angiography (WB-MRA) using two different magnetic resonance contrast agents.

ischemia
MRI
lower limb ischemia
angiography
magnetic resonance angiography
  • 36 views
  • 07 Nov, 2020
  • 1 location
Right Atrial Fibrosis in Pulmonary Hypertension

The study aim to assess right atrial (RA) remodeling, in terms of RA fibrosis, in pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension patients. This will be investigated in detail with in-depth cardiac magnet resonance imaging (CMRI). A cohort with exclusion of pulmonary hypertension which underwent CMRI due to dyspnoe …

  • 0 views
  • 27 Jan, 2021
  • 2 locations
WISE CVD - Continuation (WISE HFpEF)

The Women's Ischemia Study Evaluation (WISE), a cohort study of over 1000 women, has made many contributions to the understanding of cardiovascular disease. A milestone acknowledged in the 2011 AHA Herrick Lecture is the role of Coronary Microvascular Dysfunction (CMD) in women with symptoms/signs of ischemia without obstructive coronary artery …

coronary disease
estrogen
fats
diuretics
endothelial dysfunction
  • 0 views
  • 29 Aug, 2021
  • 1 location
Study to Evaluate Cerebral AneurysmFlow Results in Occlusion

AneurysmFlow R1.0 is an approved (i.e. CE labeled, 510k, Health Canada), software tool intended to provide relevant information on the blood flow in a cerebral aneurysm and its parent artery based on angiography. It calculates the Mean Aneurysm Flow Amplitude (MAFA) ratio to measure the volumetric flow rate quotient before …

saccular aneurysm
angiography
cerebral aneurysm
  • 10 views
  • 11 Feb, 2021
  • 5 locations
Evaluation of Nidus Occlusion After Gamma Knife Radiosurgery of Cerebral Arteriovenous Malformations Using Magnetic Resonance Imaging

Cerebral arteriovenous malformations (AVMs) are abnormal vessels, connecting cerebral arteries and veins. They form a bundle which is called nidus. Rupture of an AVM leads to intracranial hemorrhage often causing neurological impairment or even death. As treatment can be associated with high rates of morbidity and mortality, AVMs still remain …

MRI
angiography
intracranial hemorrhage
gamma knife radiosurgery
  • 53 views
  • 30 Apr, 2021
  • 1 location