-
Turk Kardiyoloji Dernegi Arsivi : Turk... Jun 2021
Topics: Arterial Occlusive Diseases; Coronary Angiography; Humans; Radial Artery; Ultrasonography, Interventional
PubMed: 34106057
DOI: 10.5543/tkda.2021.21114 -
Circulation Journal : Official Journal... Apr 2022
Topics: Angiography; Contrast Media; Coronary Angiography; Female; Humans; Male; Renal Insufficiency, Chronic
PubMed: 35354716
DOI: 10.1253/circj.CJ-22-0141 -
Asia-Pacific Journal of Ophthalmology... 2019
Topics: Angiography; Eye Diseases; Humans; Image Processing, Computer-Assisted; Tomography, Optical Coherence
PubMed: 31037875
DOI: 10.22608/APO.201984 -
Magma (New York, N.Y.) Oct 2020Coronary magnetic resonance angiography (coronary MRA) is advantageous in its ability to assess coronary artery morphology and function without ionizing radiation or... (Review)
Review
Coronary magnetic resonance angiography (coronary MRA) is advantageous in its ability to assess coronary artery morphology and function without ionizing radiation or contrast media. However, technical limitations including reduced spatial resolution, long acquisition times, and low signal-to-noise ratios prevent it from clinical routine utilization. Nonetheless, each of these limitations can be specifically addressed by a combination of novel technologies including super-resolution imaging, compressed sensing, and deep-learning reconstruction. In this paper, we first review the current clinical use and motivations for non-contrast coronary MRA, discuss currently available coronary MRA techniques, and highlight current technical developments that hold unique potential to optimize coronary MRA image acquisition and post-processing. In the final section, we examine the various research-based coronary MRA methods and metrics that can be leveraged to assess coronary stenosis severity, physiological function, and atherosclerotic plaque characterization. We specifically discuss how such technologies may contribute to the clinical translation of coronary MRA into a robust modality for routine clinical use.
Topics: Contrast Media; Coronary Angiography; Coronary Vessels; Heart; Magnetic Resonance Angiography
PubMed: 32242282
DOI: 10.1007/s10334-020-00834-8 -
Deutsches Arzteblatt International Jul 2012
Topics: Angiography; Aortic Aneurysm; Endovascular Procedures; Humans
PubMed: 23056155
DOI: 10.3238/arztebl.2012.0504b -
JACC. Cardiovascular Imaging Dec 2020Coronary artery disease remains the leading cause of cardiovascular morbidity and mortality. Invasive X-ray angiography and coronary computed tomography angiography are... (Review)
Review
Coronary artery disease remains the leading cause of cardiovascular morbidity and mortality. Invasive X-ray angiography and coronary computed tomography angiography are established gold standards for coronary luminography. However, they expose patients to invasive complications, ionizing radiation, and iodinated contrast agents. Among a number of imaging modalities, coronary cardiovascular magnetic resonance (CMR) angiography may be used in some cases as an alternative for the detection and monitoring of coronary arterial stenosis, with advantages including its versatility, excellent soft tissue characterization, and avoidance of ionizing radiation and iodinated contrast agents. In this review, we explore the recent advances in motion correction, image acceleration, and reconstruction technologies that are bringing coronary CMR angiography closer to widespread clinical implementation.
Topics: Computed Tomography Angiography; Coronary Angiography; Coronary Artery Disease; Coronary Stenosis; Humans; Magnetic Resonance Angiography; Predictive Value of Tests
PubMed: 32199836
DOI: 10.1016/j.jcmg.2020.01.006 -
Tomography (Ann Arbor, Mich.) Sep 2022Gastrointestinal bleeding is a potentially life-threatening abdominal emergency that remains a common cause of hospitalisation. Although 80-85% of cases of... (Review)
Review
Gastrointestinal bleeding is a potentially life-threatening abdominal emergency that remains a common cause of hospitalisation. Although 80-85% of cases of gastrointestinal bleeding resolve spontaneously, it can result in massive haemorrhage and death. The presentation of gastrointestinal bleeding can range from asymptomatic or mildly ill patients requiring only conservative treatments to severely ill patients requiring immediate intervention. Identifying the source of the bleeding can be difficult due to the wide range of potential causes, the length of the gastrointestinal tract and the intermittent nature of the bleeding. The diagnostic and therapeutic approach is fully dependent on the nature of the bleeding and the patient's haemodynamic status. Radiologists should be aware of the appropriate uses of computed tomography angiography and other imaging modalities in patients with acute gastrointestinal bleeding, as well as the semiotics of bleeding and diagnostic pitfalls in order to appropriately diagnose and manage these patients. The learning objective of this review is to illustrate the computed tomography angiography technique, including the potential role of dual-energy computed tomography angiography, also highlighting the tips and tricks to identify the most common and uncommon features of acute gastrointestinal bleeding and its obscure form.
Topics: Humans; Computed Tomography Angiography; Angiography; Gastrointestinal Hemorrhage; Tomography, X-Ray Computed; Acute Disease
PubMed: 36287797
DOI: 10.3390/tomography8050198 -
Journal of Nuclear Medicine : Official... Jun 1981
Topics: Angiography; Computers; Forecasting; Humans; Magnetic Resonance Spectroscopy; Radionuclide Imaging
PubMed: 7229720
DOI: No ID Found -
Interventional Neuroradiology : Journal... Aug 2020The objective of this study was to assess the efficacy and safety of transradial access for diagnostic angiography and interventional neuroradiology procedures.
PURPOSE
The objective of this study was to assess the efficacy and safety of transradial access for diagnostic angiography and interventional neuroradiology procedures.
METHODS
This was a retrospective analysis of a single-center experience based on 225 patients attended between August 2015 and October 2019, in which transradial access was used for diagnostic angiography and endovascular interventions. Ultrasound-guided access was done at the level of the forearm or anatomical or snuffbox (distal transradial access). Conventional forearm transradial access was done in 179 procedures (right, left and bilateral in 169, 5 and 5, respectively), while distal transradial access was done in 46 cases (41 right and 5 left). Primary outcome measures included successful catheterization, need to change access, or technical complications.
RESULTS
In the group of 131 diagnostic angiographies, the technique success rate was 100% to target the right vertebral artery, 97% for the right internal carotid, 93.5% for the left internal carotid, 82% for the left vertebral artery, and 100% for both common and external carotid arteries. All patients were discharged within 2-4 h after the procedure. A total of 94 interventional procedures were performed, including aneurysms in 39 cases, stroke in 34, and other procedures (carotid stents, arteriovenous malformations, carotid-cavernous fistula) in the remaining 21. The overall technical success in both diagnostic angiographies and interventional procedures was 97.7%. In four cases of diagnostic angiography and in 1 intervention, it was necessary to switch from transradial access to transfemoral access. Three cases of hematoma related to the access site were recorded.
CONCLUSIONS
In our experience, transradial access is an alternative approach for diagnostic angiography and neuro-interventions.
Topics: Aged; Aged, 80 and over; Catheterization; Cerebral Angiography; Cerebrovascular Disorders; Endovascular Procedures; Female; Humans; Male; Radial Artery; Retrospective Studies; Ultrasonography
PubMed: 32408785
DOI: 10.1177/1591019920925711 -
Interventional Neuroradiology : Journal... Dec 2022The vascular anatomy of orbit is highly complex, and the main blood supply to the orbit is via the ophthalmic artery, which is a branch of the internal carotid artery....
BACKGROUND
The vascular anatomy of orbit is highly complex, and the main blood supply to the orbit is via the ophthalmic artery, which is a branch of the internal carotid artery. The purpose of this study was to determine the morphometry of the ophthalmic artery and its branches by superselective angiography in a large series of pediatric patients.
METHODS
We evaluated 134 angiographies performed on children with intraocular retinoblastoma undergoing intra-arterial chemotherapy. The origin, diameter, and angiographic visibility percentages of the ophthalmic artery and its branches were examined according to age group and sex.
RESULTS
The ophthalmic artery originated 97.8% from the internal carotid artery and 2.2% from the middle meningeal artery. The mean diameter of ophthalmic artery was measured 0.76 ± 0.14 mm in girls, 0.80 ± 0.15 mm in boys and 0.79 ± 0.15 mm in general. The posterior ciliary, lacrimal, inferior muscular, and anterior ethmoidal arteries had a higher angiographic visibility percentages (> 85%) than the other OA branches. Only the diameter of the dorsal nasal artery showed a significant correlation with age. The supratrochlear and posterior ciliary arteries showed statistically significant relationship with sex.
CONCLUSIONS
Present study will make a substantial contribution to the pediatric literature about the ophthalmic artery and its branches. A better understanding of ophthalmic artery morphology can help surgeons and neurointerventional radiologists to avoid possible severe complications during embolization, intra-arterial chemotherapy, cosmetic procedures, endonasal and orbital surgeries.
Topics: Male; Female; Humans; Child; Ophthalmic Artery; Angiography; Carotid Artery, Internal; Meningeal Arteries; Retinal Neoplasms
PubMed: 35317633
DOI: 10.1177/15910199221067664