Symposium
on Biomedical Imaging
ROENGTENOGRAPHY
| November 8,
1895 |
Wilhelm Roengten discovers
Xrays. |
| December
22, 1895 |
Roengten takes the first
Human Xray image of his wife's hand. |
| December
28, 1895 |
Roengten names his
radiations: A NEW TYPE OF RAYS |
| February 22,
1896 |
First use of Xrays in
medical diagnosis by the Surgeon Robert Jones |
| December 1896 |
First use of Xrays in
medical treatment |
| 1901 |
First Nobel Prize in physics goes to
Roengten |
| 1904 |
First death from Xrays of Clearance Dally
who was working in Thomas Edison's labs |
| February 23, 1923 |
Roengten dies |
| Plain
radiography |
DENSE STRUCTURES: skeletons,
bone destructions, infectious processes, tumors of bones, changes due to arthritis,
fractures |
| Skiagraphy |
SOFT TISSUES; according to
character of shadow, lung fields (pneum), tuberculosis, pleural effusion, heart size and
shape, other visceras, muscle shadows |
| Mammography |
A dedicated separate unit
Indications: Diagnosis, Preoperative assessment & management of
breast cancer, Large & nodular breasts |
| barium studies
|
1. barium swallow 2. barium meals 3.
barium enema |
| Angiography |
used for the study of the vascular system - based on
contrast studies |
| Intravenous Pyelography IVP |
used to study obstruction, kidneys and the urinary
system |
| Contrast Agents |
air, bismuth, barium, simple iodine solutions, iodine
solutions in peaneut oils, iodine in 25% poppy seed oil, sodium iodotetraphenolphthalein |
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Ionic contrasts: severe reactions (1 in
1000), deaths (1 in 75,000) |
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Non-ionic contrasts: they are low
osmolar compunds and the reactions reduce by 80% |
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Contrast Reactions: feeling of warmth,
pain in upper limbs, nausea and vomiting, light headedness, utricarial rash, bronchospasm,
laryngead edema, hypotension |
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