Angiography Vs CT Angiography - V Care Health India
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What is coronary angiography?
Coronary angiography is a method of examining the coronary arteries.
A radiopaque agent is injected into each coronary artery after the catheter has been inserted into the aorta.
The examination is done on an empty stomach.
The duration of the procedure is 20-90 minutes.
Some patients may experience allergic reactions to the injected chemical.
#angiography #coronary #Coronaryangiography #myocardialinfarction
Digital subtraction angiography (DSA) of the middle cerebral artery (MCA) with its four segments.
More anatomical information about each segment:
German: https://www.ars-neurochirurgica.com/lexikon/arteria-cerebri-media-mca
English: https://www.ars-neurochirurgica.com/en/articles/middle-cerebral-artery-mca
#anatomy #neuroanatomy #brain #radiology #neuroradiology #neurosurgery #medicine #angiography
Die Arteria cerebri media ist ein Endast der Arteria carotis interna, der zu den drei Hauptgefäßen zur arteriellen Versorgung des Gehirns gehört. AnatomieDie ArDie Arteria cerebri media ist ein Endast der Arteria carotis interna, der zu den drei Hauptgefäßen zur arteriellen Versorgung des Gehirns gehört. AnatomieDie ArDie Arteria cerebri media ist ein Endast der Arteria carotis interna, der zu den drei Hauptgefäßen zur arteriellen Versorgung des Gehirns gehört. AnatomieDie ArDie Arteria cerebri media ist ein Endast der Arteria carotis interna, der zu den drei Hauptgefäßen zur arteriellen Versorgung des Gehirns gehört. AnatomieDie Ar
Compressed SENSE (CS) sequences could considerably shorten the acquisition time of noncontrast #coronary MR #angiography (NCMRA). (Yang Zhang et al.)
Read more ➡️ https://insightsimaging.springeropen.com/articles/10.1186/s13244-023-01378-w
Objective The relatively long scan time has hampered the clinical use of whole-heart noncontrast coronary magnetic resonance angiography (NCMRA). The compressed sensitivity encoding (SENSE) technique, also known as the CS technique, has been found to improve scan times. This study aimed to identify the optimal CS acceleration factor for NCMRA. Methods Thirty-six participants underwent four NCMRA sequences: three sequences using the CS technique with acceleration factors of 4, 5, and 6, and one sequence using the conventional SENSE technique with the acceleration factor of 2. Coronary computed tomography angiography (CCTA) was considered as a reference sequence. The acquisition times of the four NCMRA sequences were assessed. The correlation and agreement between the visible vessel lengths obtained via CCTA and NCMRA were also assessed. The image quality scores and contrast ratio (CR) of eight coronary artery segments from the four NCMRA sequences were quantitatively evaluated. Results The mean acquisition time of the conventional SENSE was 343 s, while that of CS4, CS5, and CS6 was 269, 215, and 190 s, respectively. The visible vessel length from the CS4 sequence showed good correlation and agreement with CCTA. The image quality score and CR from the CS4 sequence were not statistically significantly different from those in the other groups (p > 0.05). Moreover, the image score and CR showed a decreasing trend with the increase in the CS factor. Conclusions The CS technique could significantly shorten the acquisition time of NCMRA. The CS sequence with an acceleration factor of 4 was generally acceptable for NCMRA in clinical settings to balance the image quality and acquisition time.
Comparing the #financial and #clinical outcomes of CT myocardial perfusion imaging (CT-MPI) + #coronary CT #angiography (CCTA)-guided vs. CCTA-guided strategy. Can this help reduce #medical expenditures? (Xu Dai et al.)
🔗 https://link.springer.com/article/10.1007/s00330-023-09787-7
Objectives To compare the financial and clinical outcomes of CT myocardial perfusion imaging (CT-MPI) + coronary CT angiography (CCTA)–guided versus CCTA-guided strategy in patients suspected of chronic coronary syndrome (CCS). Materials and methods This study retrospectively included consecutive patients suspected of CCS and referred for CT-MPI+CCTA-guided and CCTA-guided treatment. The details of medical costs within 3 months after index imaging, including downstream invasive procedures, hospitalization, and medications, were recorded. All patients were followed up for major adverse cardiac events (MACE) at a median time of 22 months. Results A total of 1335 patients (559 in the CT-MPI+CCTA group and 776 in the CCTA group) were finally included. In the CT-MPI+CCTA group, 129 patients (23.1%) underwent ICA and 95 patients (17.0%) received revascularization. In the CCTA group, 325 patients (41.9%) underwent ICA whereas 194 patients (25.0%) received revascularization. An addition of CT-MPI in the evaluation strategy remarkably reduced the healthcare expenditure, compared with CCTA-guided strategy (USD 1441.36 vs. USD 232.91, p < 0.001). After adjustment for potential cofounders after inverse probability weighting, the CT-MPI+CCTA strategy was significantly associated with lower medical expenditure [adjusted cost ratio (95% CI) for total costs: 0.77 (0.65–0.91), p < 0.001]. In addition, there was no significant difference regarding the clinical outcome between the two groups (adjusted HR= 0.97; p = 0.878). Conclusions CT-MPI+CCTA considerably reduced medical expenditures in patients suspected of CCS, compared to the CCTA strategy alone. Moreover, CT-MPI+CCTA led to a lower rate of invasive procedures with a similar long-term prognosis. Clinical relevance statement CT myocardial perfusion imaging + coronary CT angiography-guided strategy reduced medical expenditure and invasive procedure rate. Key Points • CT-MPI+CCTA strategy yielded significantly lower medical expenditure than did the CCTA strategy alone in patients with suspected CCS. • After adjustment for potential confounders, the CT-MPI+CCTA strategy was significantly associated with lower medical expenditure. • No significant difference was observed regarding the long-term clinical outcome between the two groups.
Educational Review: CT #angiography for the assessment of #EVAR complications: a pictorial review. (Cecilia Gozzo et al.)
Full article here ➡️ https://insightsimaging.springeropen.com/articles/10.1186/s13244-021-01112-4
Endovascular aneurysm repair (EVAR) is a minimally invasive treatment proposed as an alternative to open repair in patients with abdominal aortic aneurysms. EVAR consists in a stent-graft placement within the aorta in order to exclude the aneurysm from arterial circulation and reduce the risk of rupture. Knowledge of the various types of devices is mandatory because some stents/grafts are more frequently associated with complications. CT angiography is the gold standard diagnostic technique for preprocedural planning and postprocedural surveillance. EVAR needs long-term follow-up due to the high rate of complications. Complications can be divided in endograft device-related and systemic complications. The purpose of this article is to review the CT imaging findings of EVAR complications and the key features for the diagnosis.
On November 29, 1879, Portuguese neurologist António Egas Moniz was born. He is reknown as the developer of cerebral angiography. Moniz is regarded as one of the founders of modern psychosurgery, having developed the surgical procedure leucotomy — known better today as lobotomy — for which he became the first Portuguese national to receive a Nobel Prize in 1949
http://scihi.org/antonio-egas-muniz-cerebral-angiography/
#neurology #nobelprize #historyofscience #otd #portugal #angiography #lobotomy
Прикладная ангиография.
Кровеносные сосуды.
Голова голубя vs Голова человека
И попугайская голова с контрастом в оттенках серого.
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