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International Journal of Legal Medicine Nov 2011The objective of this work was to develop an easily applicable technique and a standardized protocol for high-quality post-mortem angiography. This protocol should (1)...
The objective of this work was to develop an easily applicable technique and a standardized protocol for high-quality post-mortem angiography. This protocol should (1) increase the radiological interpretation by decreasing artifacts due to the perfusion and by reaching a complete filling of the vascular system and (2) ease and standardize the execution of the examination. To this aim, 45 human corpses were investigated by post-mortem computed tomography (CT) angiography using different perfusion protocols, a modified heart-lung machine and a new contrast agent mixture, specifically developed for post-mortem investigations. The quality of the CT angiographies was evaluated radiologically by observing the filling of the vascular system and assessing the interpretability of the resulting images and by comparing radiological diagnoses to conventional autopsy conclusions. Post-mortem angiography yielded satisfactory results provided that the volumes of the injected contrast agent mixture were high enough to completely fill the vascular system. In order to avoid artifacts due to the post-mortem perfusion, a minimum of three angiographic phases and one native scan had to be performed. These findings were taken into account to develop a protocol for quality post-mortem CT angiography that minimizes the risk of radiological misinterpretation. The proposed protocol is easy applicable in a standardized way and yields high-quality radiologically interpretable visualization of the vascular system in post-mortem investigations.
Topics: Angiography; Autopsy; Cadaver; Contrast Media; Humans; Postmortem Changes; Tomography, X-Ray Computed
PubMed: 21057803
DOI: 10.1007/s00414-010-0526-5 -
Acta Radiologica: Diagnosis Nov 1977The resolving capacity of magnification testicular angiography, as related to the known vascular anatomy of the testis and epididymis, was analysed on the basis of 9...
The resolving capacity of magnification testicular angiography, as related to the known vascular anatomy of the testis and epididymis, was analysed on the basis of 9 normal angiographies and 8 cases of hydrocele with proven normal status of the testis and epididymis. The intratesticular vascular arrangement was demonstrated remarkably well, but of the epididymal vascularity only that in the head of the epididymis. The vascular anatomy of the testis as resolved by angiography may be utilized in the diagnosis of the location and nature of intra- and extratesticular mass lesions.
Topics: Angiography; Epididymis; Humans; Male; Radiographic Magnification; Regional Blood Flow; Subtraction Technique; Testis
PubMed: 343507
DOI: 10.1177/028418517701800603 -
Catheterization and Cardiovascular... 1979
Topics: Angiography; Cardiac Catheterization; Coronary Angiography; Humans; Time Factors
PubMed: 487422
DOI: 10.1002/ccd.1810050214 -
AJNR. American Journal of Neuroradiology 1981Fourteen cases of inadvertent iatrogenic embolization of cerebral vessels occurring in a consecutive series of 3,731 angiographies in infants and children were studies....
Fourteen cases of inadvertent iatrogenic embolization of cerebral vessels occurring in a consecutive series of 3,731 angiographies in infants and children were studies. The incidence of embolization(0.9% of all patients ond 0.4% of all angiographic examinations) was about the same as has been reported in adults, but the clinical consequences were much milder, only one patient having documented transient neurologic symptoms. Also the angiographic appearance of the emboli differed from those described in adults. These differences may in part be due to the technique (general anesthesia with hyperventilation) but also to different reactions towards ischemia and to different types of emboli in children.
Topics: Catheterization; Cerebral Angiography; Child; Child, Preschool; Female; Humans; Intracranial Embolism and Thrombosis; Male
PubMed: 6787903
DOI: No ID Found -
Clinical Neuroradiology Mar 2024Diagnostic cerebral catheter angiography is used to assess a variety of neurovascular pathologies especially in patients before and after endovascular...
PURPOSE
Diagnostic cerebral catheter angiography is used to assess a variety of neurovascular pathologies especially in patients before and after endovascular neurointerventional treatment. In many centers diagnostic cerebral angiographies are performed with the patient staying for one night in the hospital because there are not yet sufficient data on the safety of ambulatory cerebral angiography. At the same time hospitals face a growing demand to perform ambulatory medical procedures.
METHODS
A total of 426 ambulatory diagnostic cerebral angiographies were retrospectively analyzed. Technical details of the angiographies were analyzed to identify procedural risk factors.
RESULTS
Out of 426 patients 14 (3.3%) had some form of complication, 3 developed minor transient neurological symptoms, 1 patient developed Quincke's edema probably as an adverse reaction to contrast agent, 1 patient had an asymptomatic carotid dissection and 1 had a fall of unknown etiology. Of the 14 complications 8 were puncture site complications with 1 re-bleeding, 1 dissection, and 6 minor complications, 421 punctures were femoral, 3 radial and 2 brachial. Out of 333 patients with magnetic resonance imaging (MRI) after angiography 21 showed focal diffusion-weighted imaging (DWI) lesions but none of these lesions were symptomatic. The rate of DWI lesions was significantly higher in selectively angiography territories than in other territories. The use of a Simmons 2 catheter significantly increased the rate of DWI lesions (p = 0.047), whereas 3D rotational angiography did not (p = 0.55). The rate of DWI lesions per selectively accessed vessel was 4.6% with a higher rate in the anterior than in the posterior circulation.
CONCLUSION
Diagnostic cerebral catheter angiography can be safely performed in an ambulatory setting.
Topics: Humans; Cerebral Angiography; Retrospective Studies; Magnetic Resonance Imaging; Diffusion Magnetic Resonance Imaging; Catheters
PubMed: 37712974
DOI: 10.1007/s00062-023-01345-4 -
Annales de Cardiologie Et D'angeiologie 2001Coronary angiography is the "gold standard" for coronary artery disease (CAD). It is considered either normal or subnormal without any lesion (endocoronary echography...
Coronary angiography is the "gold standard" for coronary artery disease (CAD). It is considered either normal or subnormal without any lesion (endocoronary echography often demonstrates atheroma), or in presence of a < 50% stenosis. Nevertheless, the risk of plaque rupture is not well correlated with the degree stenosis. Despite the frequent presence of non-significant atheroma, is a normal coronarography really of a good prognosis? Between January and September 1997, 136 of 600 (22.6%) angiographies were considered as normal. The indications were: "CAD suspicion" (n = 77), "preoperative angiography of valvulopathy" (n = 38), and "angioplasty control" (n = 22). The arteries were strictly normal for 86 patients (63%) and a < 50% stenosis was found in 50 patients (37%); 108 patients (80.1%) were followed for 18 +/- 3 months: eight non coronary deaths were reported: four postoperative deaths in "valvular group", two pulmonary embolisms and two pulmonary neoplasm's in "CAD suspicion group". No myocardial infarction was reported and one unstable angina was documented. Despite the frequency of non-significant atheroma, an acute coronary syndrome exceptionally complicates a "normal" coronarography.
Topics: Coronary Angiography; Coronary Disease; Female; Humans; Male; Middle Aged; Prognosis; Syndrome
PubMed: 12555633
DOI: 10.1016/s0003-3928(01)00047-6 -
Medical Instrumentation 1983Digital subtraction angiography is a safe, rapid, cost-saving procedure that can be performed on an outpatient basis to obtain information comparable to that obtained... (Comparative Study)
Comparative Study
Digital subtraction angiography is a safe, rapid, cost-saving procedure that can be performed on an outpatient basis to obtain information comparable to that obtained with conventional angiography. Recent technological developments have allowed greater contrast sensitivity, making DSA a feasible alternative to conventional angiography. Problems with DSA result mainly from patient motion. The overall accuracy of DSA ranges from 97% in the carotids to about 90% in evaluation of main renal artery stenosis. DSA is currently of limited use in evaluation of the pulmonary or coronary arteries.
Topics: Angiography; Humans; Vascular Diseases
PubMed: 6669107
DOI: No ID Found -
Lyon Chirurgical 1972
Topics: Age Factors; Angiography; Arteries; Catheterization; Child, Preschool; Female; Humans; Male; Middle Aged
PubMed: 4659832
DOI: No ID Found -
Neurology India 2020To evaluate the usefulness of the "Motion Correction" function of the dual volume-3D-volume-rendering technique (DV-3D-VRT) in follow-up digital subtraction angiography...
PURPOSE
To evaluate the usefulness of the "Motion Correction" function of the dual volume-3D-volume-rendering technique (DV-3D-VRT) in follow-up digital subtraction angiography (DSA) of intracranial coiled aneurysms.
MATERIALS AND METHODS
This study used data collected from consecutive, follow-up DSAs after the coiling of 64 intracranial aneurysms in 59 patients. We performed subtracted 3D-rotational angiographies (3D-RAs) on all DSAs and obtained DV-3D-VRT images. We then assessed recurrence using DV-3D-VRT images with and without the motion correction functions (MC(+) vs. MC(-)) and observed which method showed better agreement with the reference assessment (using a combination of 2D DSA and TOF MRA images).
RESULTS
The recurrence of MC(-) DV-3D-VRT images showed 51.6% (33/64) agreement with the reference assessment, whereas the MC(+) DV-3D-VRT images showed 78.1% (50/64) (P = 0.035, McNemar test).
CONCLUSION
Motion correction is a useful complementary imaging technique in evaluating aneurysm recurrence after endovascular embolization. MC(+) DV-3D-VRT image showed higher inter-observer agreement than MC(-) DV-3D-VRT.
Topics: Adult; Aged; Angiography, Digital Subtraction; Cerebral Angiography; Embolization, Therapeutic; Female; Follow-Up Studies; Humans; Imaging, Three-Dimensional; Intracranial Aneurysm; Magnetic Resonance Angiography; Male; Middle Aged
PubMed: 32129258
DOI: 10.4103/0028-3886.279652 -
Recenti Progressi in Medicina Mar 1983