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Advantage and disadvantages of digital subtraction angiography?
a
What technique creates a three-dimensional dynamic image of blood vessels?
What technique creates a three dimensional dynamic image of blood vessels
Difference between angiography and Digital subtraction angiography?
In digital subtraction angiography (DSA), an image is obtained prior to the introduction of the radio-opaque contrast medium. This image is then digitally "subtracted" by turning it into a "negative" and then superimposing the image onto images acquired after the injection of contrast. This theoretically results in everything but the image of contrast within the vessel being subtracted, or removed, leaving a clearer picture. Often due to patient movement, breathing etc, the two images do not exactly superimpose and some residual shadow of the surrounding structures may be visible.
What digital angiography uses video and computer assisted enhancement of images obtained with conventional angiography?
substraction
What is the medical term meaning X-ray imaging of heart and vessels?
Angiography is an x-ray imaging technique usually used to image hearts and vessels. New imaging techniques are also available for the same purpose, for example, CT angiography and MR angiography.
What is the chief limitation to the use of digital techniques?
what are the chief limitations to the use of digital techniques
Why subtractor IC is not available?
The operation of subtraction is just the inverse of addition, if you can do one you can do the other. BTW, are you thinking analog or digital IC? If digital there are ALU IC chips that do both, depending ..
What is an angiographic record?
An angiographic record is a visual or digital documentation of blood vessels or organs taken during an angiography procedure. It helps doctors diagnose conditions like blockages or abnormalities in the blood vessels.
Why iodine is use in DSA?
A form of digital radiography that delineates blood vessels by subtracting a digitized tissue background image from an image of tissue injected with an intravascular contrast material with a high content of iodine that attenuates x-rays. Abbreviated DSA.
What are some key challenges that organizations face during the process of digital transformation?
Absence of clear strategy. Shifting customer expectations. Emerging digital skill shortage. Financial limitations and concerns Poor data handling.
Why do you need test specifications in digital multimeters?
because it might output the wrong answer if not used in the right range/may be faulty/basically knowing its limitations
What is the limitation of digital marketing?
Limitations of Digital Marketing: Digital marketing, despite its many advantages, has certain limitations that businesses need to be aware of. One key challenge is the fierce competition online, making it difficult to stand out. Consumers are increasingly experiencing "ad fatigue," causing digital ads to lose their impact over time. Privacy concerns also pose a significant barrier, as stricter regulations like GDPR limit data collection and targeting capabilities. The constantly changing landscape of algorithms, especially on platforms like Google and social media, means that strategies need frequent updating to stay effective. Additionally, tracking and measuring the true ROI of digital marketing campaigns can be complicated due to multi-channel attribution, making it hard to pinpoint which efforts drive the best results. Despite these limitations, with proper planning and adaptation, businesses can leverage digital marketing to reach their target audience effectively.
