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2. Photoplethysmogram - Wikipedia

   en.wikipedia.org/wiki/Photoplethysmogram

   A higher spatial bandwidth is crucial for larger image field of view. A refinement of holographic photoplethysmography, holographic laser Doppler imaging, enables non-invasive blood flow pulse wave monitoring in blood vessels of the retina, choroid, conjunctiva, and iris. [24]

3. Plethysmograph - Wikipedia

   en.wikipedia.org/wiki/Plethysmograph

   A man undergoing whole body plethysmography. A modern body plethysmograph using ultrasound. A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains).

4. Angiography - Wikipedia

   en.wikipedia.org/wiki/Angiography

   For all structures except the heart, the images are usually taken using a technique called digital subtraction angiography or DSA. Images in this case are usually taken at 2–3 frames per second, which allows the interventional radiologist to evaluate the flow of the blood through a vessel or vessels. This technique "subtracts" the bones and ...

5. Allen's test - Wikipedia

   en.wikipedia.org/wiki/Allen's_test

   In the modified Allen test, one hand is examined at a time: [2] The patient is asked to clench their fist for about 30 seconds. Pressure is applied over the ulnar and the radial arteries so as to occlude both of them. Still elevated, the hand is then opened. It should appear blanched (pallor may be observed at the finger nails).

6. Hemocytometer - Wikipedia

   en.wikipedia.org/wiki/Hemocytometer

   The hemocytometer (or haemocytometer, or Burker's chamber) is a counting-chamber device originally designed and usually used for counting blood cells. [1] The hemocytometer was invented by Louis-Charles Malassez and consists of a thick glass microscope slide with a rectangular indentation that creates a precision volume chamber.

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Laser Doppler imaging - Wikipedia

   en.wikipedia.org/wiki/Laser_Doppler_imaging

   Blood flow pulse wave in the central retinal artery (red) and vein (blue), measured by laser Doppler holography in the eye fundus of a healthy volunteer. The eye offers a unique opportunity for the non-invasive exploration of cardiovascular diseases. LDI by digital holography can measure blood flow in the retina and choroid. [7]

9. Instruments used in medical laboratories - Wikipedia

   en.wikipedia.org/wiki/Instruments_used_in...

   used in photochemical analysis and quantitative estimation of substances such as blood sugar, creatinine, and hemoglobin. Burette: used to measure the amount of acid or alkali used in titration: General laboratory stands, racks, filter paper, reagents, etc. Induction coils: as a source of high voltage electricity Cathode ray oscilloscope ...