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JACC. Cardiovascular Imaging Oct 2017
Topics: Angiography, Digital Subtraction; Computed Tomography Angiography; Humans; Lower Extremity; Magnetic Resonance Angiography; Peripheral Arterial Disease
PubMed: 28982569
DOI: 10.1016/j.jcmg.2016.11.012 -
International Journal of Clinical... 2022To study the predictive value for coronary artery calcification (CAC) of plasma galectin-3 and brachial-ankle pulse wave velocity (BaPWV) in coronary arteriography (CAG)...
OBJECTIVES
To study the predictive value for coronary artery calcification (CAC) of plasma galectin-3 and brachial-ankle pulse wave velocity (BaPWV) in coronary arteriography (CAG) patients.
METHODS
Patients who received coronary arteriography (CAG) examination were recruited. The level of plasma galectin-3 was measured by the enzyme-linked immunosorbent assay. The arterial stiffness was analyzed by BaPWV and ankle-brachial index (ABI) which were measured using a volume-plethysmographic device. Receiver operating characteristic (ROC) curve was used to analyze the prognostic value of galectin-3 or BaPWV for coronary artery calcification (CAC).
RESULTS
The level of galectin-3 and BaPWV was significantly higher in CAC patients compared with that in control ( < 0.01). The level of plasma galectin-3 was positively correlated with BaPWV ( = -0.296, < 0.01) and negatively correlated with ABI ( = -0.296, < 0.01). ROC curve analysis revealed that galectin-3 ≥5.90 ng/ml was the most powerful predictor for CAC with sensitivity of 85.5% and specificity of 83.5%. The area under the curve (AUC) was 0.916. When the level of BaPWV was more than 1909 m/s, the sensitivity and specificity were 61.8% and 69.6%, respectively, for predicting CAC. The AUC was 0.646.
CONCLUSIONS
The level of plasma galectin-3 increases significantly in CAC patients compared to control, and its level is related to BaPWV and ABI. Galectin-3 and BaPWV can be used to predict CAC, and the diagnosis value (sensitivity and specificity) of galectin-3 for CAC is better than that of BaPWV.
Topics: Ankle Brachial Index; Coronary Angiography; Coronary Artery Disease; Galectin 3; Humans; Pulse Wave Analysis
PubMed: 35685493
DOI: 10.1155/2022/1865736 -
Cirugia Espanola May 2008The therapeutic and diagnostic approach of liver trauma injuries (by extension, of abdominal trauma) has evolved remarkably in the last decades. The current non-surgical... (Review)
Review
The therapeutic and diagnostic approach of liver trauma injuries (by extension, of abdominal trauma) has evolved remarkably in the last decades. The current non-surgical treatment in the vast majority of liver injuries is supported by the accumulated experience and optimal results in the current series. It is considered that the non-surgical treatment of liver injuries has a current rate of success of 83-100%, with an associated morbidity of 5-42%. The haemodynamic stability of the patient will determine the applicability of the non-surgical treatment. Arteriography with angioembolisation constitutes a key technical tool in the context of liver trauma. Patients with haemodynamic instability will need an urgent operation and can benefit from abdominal packing techniques, damage control and post-operative arteriography. The present review attempts to contribute to the current, global and practical management in the care of liver trauma.
Topics: Angiography; Humans; Liver; Wounds and Injuries
PubMed: 18448024
DOI: 10.1016/s0009-739x(08)70559-1 -
California Medicine Oct 1963Orthostatic renal arteriography has served to provide better delineation of the renal arteries, to better define stenotic lesions of these vessels and to point to a...
Orthostatic renal arteriography has served to provide better delineation of the renal arteries, to better define stenotic lesions of these vessels and to point to a possible relationship between excessive renal mobility and the development of mural hyperplasias of the renal artery. It is suggested that where facilities permit, orthostatic renal arteriography be employed as a method of obtaining a better understanding of renal artery architecture and function in patients who are being studied for secondary hypertension.
Topics: Angiography; Humans; Hypertension; Kidney; Posture; Renal Artery
PubMed: 14051484
DOI: No ID Found -
Neurosurgical Review Dec 2023Spinal dural arteriovenous fistulas (SDAVFs) constitute the most common type of spinal vascular malformations. Their diagnosis requires spinal digital subtraction... (Meta-Analysis)
Meta-Analysis Review
Spinal dural arteriovenous fistulas (SDAVFs) constitute the most common type of spinal vascular malformations. Their diagnosis requires spinal digital subtraction angiography (DSA), which is time-consuming, requires catheterizing many vessels, and exposes patient to a high radiation and contrast doses. This study aims to evaluate the usefulness of time-resolved MR angiography (TR-MRA) in SDAVF diagnosis. We performed a systematic review of the PubMed and EMBASE databases followed by a meta-analysis. TR-MRA was an index test, and spinal DSA was a reference. Of the initial 324 records, we included 4 studies describing 71 patients with SDAVFs. In 42 cases, TR-MRA was true positive, and in 21 cases, it was true negative. We found 7 false-positive cases and 1 false negative. TR-MRA allowed for shunt level identification in 39 cases. Of these, the predicted level was correct in 23 cases (59%), to within 1 level in 38 cases (97.4%) and to within 2 levels in 39 cases (100%). The diagnostic odds ratio was 72.73 (95% CI [10.30; 513.35]), z = 4.30, p value < 0.0001. The pooled sensitivity was 0.98 (95% CI [0.64; 1.00]), and the pooled specificity was 0.79 (95% CI [0.10; 0.99]). The AUC of the SROC curve was 0.9. TR-MRA may serve as a preliminary study to detect SDAVFs and localize the shunt level with sensitivity and specificity as high as 98% and 79%, respectively. Unless the TR-MRA result is unequivocal, it should be followed by a limited spinal DSA.
Topics: Humans; Contrast Media; Magnetic Resonance Angiography; Spine; Angiography, Digital Subtraction; Central Nervous System Vascular Malformations
PubMed: 38072856
DOI: 10.1007/s10143-023-02242-7 -
Postgraduate Medical Journal Sep 1953
Topics: Angiography; Aortography; Humans
PubMed: 13088510
DOI: 10.1136/pgmj.29.335.441 -
Medical Science Monitor : International... Jun 2013There are many systemic complications of conventional selective renal arteriography (SRA), such as contrast-mediated nephropathy. Contrast-enhanced magnetic resonance... (Comparative Study)
Comparative Study
Comparison of diagnostic accuracy of Doppler USG and contrast-enhanced magnetic resonance angiography and selective renal arteriography in patients with atherosclerotic renal artery stenosis.
BACKGROUND
There are many systemic complications of conventional selective renal arteriography (SRA), such as contrast-mediated nephropathy. Contrast-enhanced magnetic resonance angiography (CE-MRA) and renal artery Doppler ultrasonography (DUSG) have been used increasingly for renal artery stenosis (RAS). The aim of this study was to evaluate the accuracy of CE-MRA and DUSG as used for diagnosis of RAS.
MATERIAL AND METHODS
We divided 130 consecutive patients investigated for resistant hypertension into 2 groups based on age: group 1 was patients <60 years old and group 2 was patients >60 year. DUSG, CE-MRA, and SRA were performed in group 1 and group 2 patients.
RESULTS
Seventy-two patients (24 males [M], 48 females [F]) in group 1, and 58 patients (26 M, 32 F) in group 2 were included in the study. In the evaluation of clinically significant renal artery stenosis with DUSG, in group 1 the overall sensitivity was 83.33% and overall specificity was 81.82%, and in group 2 they were 69.23% and 0%, respectively, when compared with SRA. In the evaluation of clinically significant renal artery stenosis with CE-MRA, the overall sensitivity and specificity were 92.31% and 36.36%, respectively, in group 1 and 100.00% and 73.33%, respectively in group 2, when compared with SRA.
CONCLUSIONS
CE-MRA is an accurate, non-invasive method for the diagnosis of RAS in patients above 60 years of age and DUSG may be the choice of diagnostic method for RAS in patients under 60 years of age.
Topics: Adult; Angiography; Atherosclerosis; Contrast Media; Demography; Female; Humans; Magnetic Resonance Angiography; Male; Middle Aged; Renal Artery; Renal Artery Obstruction; Reproducibility of Results; Ultrasonography, Doppler
PubMed: 23778330
DOI: 10.12659/MSM.889035 -
Optics Letters May 2020Optoacoustic microscopy (OAM) can image intrinsic optical absorption contrast at depths of several millimeters where state-of-the-art optical microscopy techniques fail...
Optoacoustic microscopy (OAM) can image intrinsic optical absorption contrast at depths of several millimeters where state-of-the-art optical microscopy techniques fail due to intense light scattering in living tissues. Yet, wide adoption of OAM in biology and medicine is hindered by slow image acquisition speed, small field of view (FOV), and/or lack of spectral differentiation capacity of common system implementations. We report on a rapid acquisition functional optoacoustic micro-angiography approach that employs a burst-mode laser triggering scheme to simultaneously acquire multi-wavelength 3D images over an extended FOV covering ${50}\;{\rm mm} \times {50}\;{\rm mm}$50mm×50mm in a single mechanical overfly scan, attaining 28 µm and 14 µm resolution in lateral and axial dimensions, respectively. Owing to an ultrawideband low-noise design featuring a spherically focused polyvinylidene difluoride transducer, we demonstrate imaging of human skin and underlying vasculature at up to 3.8 mm depth when using per-pulse laser energies of only 25 µJ without employing signal averaging. Overall, the developed system greatly enhances performance and usability of OAM for dermatologic and micro-angiographic studies.
Topics: Angiography; Hand; Humans; Imaging, Three-Dimensional; Photoacoustic Techniques
PubMed: 32356806
DOI: 10.1364/OL.387630 -
Head & Neck Jun 2022In head and neck oncologic surgery a reconstructive phase is often required and pedicled flaps are still a viable option, though they may need a pedicle division...
In head and neck oncologic surgery a reconstructive phase is often required and pedicled flaps are still a viable option, though they may need a pedicle division performed at a later stage. Several techniques are commonly used for perfusion assessment of the flaps, with indocyanine green (ICG) fluorescence video-angiography representing a promising tool. We used ICG video-angiography to evaluate the perfusion of two of the most commonly adopted pedicled flaps in the head and neck field (the supraclavicular and the paramedian forehead flap) before and after second-stage pedicle division, allowing a safer in-setting. Moreover, the new high-resolution device that we have employed added further accuracy to the traditional video-angiography, providing a real-time flap-to-normal skin ICG ratio. Indeed, ICG video-angiography proved to be a useful tool in head and neck reconstructive surgery and it may allow an earlier second-stage pedicle division.
Topics: Angiography; Fluorescence; Humans; Indocyanine Green; Plastic Surgery Procedures; Surgical Flaps
PubMed: 35366038
DOI: 10.1002/hed.27051 -
AJNR. American Journal of Neuroradiology Oct 2021By means of artificial intelligence, 3D angiography is a novel postprocessing method for 3D imaging of cerebral vessels. Because 3D angiography does not require a mask...
BACKGROUND AND PURPOSE
By means of artificial intelligence, 3D angiography is a novel postprocessing method for 3D imaging of cerebral vessels. Because 3D angiography does not require a mask run like the current standard 3D-DSA, it potentially offers a considerable reduction of the patient radiation dose. Our aim was an assessment of the diagnostic value of 3D angiography for visualization of cerebrovascular pathologies.
MATERIALS AND METHODS
3D-DSA data sets of cerebral aneurysms ( = 10), AVMs ( = 10), and dural arteriovenous fistulas (dAVFs) ( = 10) were reconstructed using both conventional and prototype software. Corresponding reconstructions have been analyzed by 2 neuroradiologists in a consensus reading in terms of image quality, injection vessel diameters (vessel diameter [VD] 1/2), vessel geometry index (VGI = VD1/VD2), and specific qualitative/quantitative parameters of AVMs (eg, location, nidus size, feeder, associated aneurysms, drainage, Spetzler-Martin score), dAVFs (eg, fistulous point, main feeder, diameter of the main feeder, drainage), and cerebral aneurysms (location, neck, size).
RESULTS
In total, 60 volumes have been successfully reconstructed with equivalent image quality. The specific qualitative/quantitative assessment of 3D angiography revealed nearly complete accordance with 3D-DSA in AVMs (eg, mean nidus size= 19.9 [SD, 10.9]/20.2 [SD, 11.2] mm; = 0.9, = .001), dAVFs (eg, mean diameter of the main feeder= 2.04 [SD, 0.65]/2.05 [SD, 0.63] mm; = 0.9, = .001), and cerebral aneurysms (eg, mean size= 5.17 [SD, 3.4]/5.12 [SD, 3.3] mm; = 0.9, = .001). Assessment of the geometry of the injection vessel in 3D angiography data sets did not differ significantly from that of 3D-DSA (vessel geometry index: = 0.84, = .003; vessel geometry index: = 0.82, = .003; vessel geometry index: = 0.84, <.001).
CONCLUSIONS
In this study, the artificial intelligence-based 3D angiography was a reliable method for visualization of complex cerebrovascular pathologies and showed results comparable with those of 3D-DSA. Thus, 3D angiography is a promising postprocessing method that provides a significant reduction of the patient radiation dose.
Topics: Angiography, Digital Subtraction; Artificial Intelligence; Central Nervous System Vascular Malformations; Cerebral Angiography; Humans; Imaging, Three-Dimensional; Intracranial Aneurysm; Intracranial Arteriovenous Malformations; Magnetic Resonance Angiography
PubMed: 34503946
DOI: 10.3174/ajnr.A7252