Full Report on Pew Internet
Tuesday, October 31, 2006
Full Report on Pew Internet
Sunday, October 29, 2006
This Edition I will start with a tribute to the person responsible for the discovery of the science of Radiology Or X-Rays and the story associated with the X-ray discovery.
The Beginning Of The Science Of Radiology
"On the evening of November 8, 1895, Wilhelm Conrad Röntgen found that, if the discharge tube is enclosed in a sealed, thick black carton to exclude all light, and if he worked in a dark room, a paper plate covered on one side with barium platinocyanide placed in the path of the rays became fluorescent even when it was as far as two metres from the discharge tube. During subsequent experiments he found that objects of different thicknesses interposed in the path of the rays showed variable transparency to them when recorded on a photographic plate. When he immobilised for some moments the hand of his wife in the path of the rays over a photographic plate, he observed after development of the plate an image of his wife's hand which showed the shadows thrown by the bones of her hand and that of a ring she was wearing, surrounded by the penumbra of the flesh, which was more permeable to the rays and therefore threw a fainter shadow. This was the first "röntgenogram" ever taken. In further experiments, Röntgen showed that the new rays are produced by the impact of cathode rays on a material object. Because their nature was then unknown, he gave them the name X-rays."
Dr. Kavokin presents Patient Information on Medical Imaging technique known as Ultrasound followed by a Quiz.
"Let's say you have a belly pain. Did you ever get it?Let's say this time the pain is really unbearable. What will you do? Where would you go? You should rush to a doctor.When you arrive to ER, doctor asks you lots of questions. How bad is pain, where is it located, where does it refer (go)? Any nausea, vomiting, defecation problems and so on. He will also ask about your history. Then he looks up for your past problems in your written history or history stored on computer.He will listen your lungs, palpate your belly, sometime even causing more pain by touching. Eventually he suspects a disease and confirms it with some type of the tests. What tests will he choose? There will be blood work, urinalysis and some other analysis.Eventually you will probably go into the radiology department to get some imaging test. Abdominal US"
Mikhail Serebrennik of Filmjacket.com has submitted this case. Its Scary for Sure!
Case Details-One (relatively senior!) surgical resident at our hospital, who no longer works here, has punctured the left chest wall with a trochar in an attempt to place a left thoracic pigtail drainage catheter. You can be the judge of the resulting situation. The chest tube ended up in the left ventricle!
Hot Discussion Topics From Sumer's Radiology Site
(comments and suggestions on each topic are welcome)
Seems like Canada is also looking towards Teleradiology
Will Radiologists Keep Control Over Ultrasound?
Who should read a Coronary CT angiogram?
What is New In the Top Radiology Journals
Am J Roentgenol
That wraps up this month's highlights of the Radiology blogosphere. Hope the readers enjoyed the Fifth edition of the Radiology Grand Rounds. If you liked any of these blogs, keep visiting them. Please email me at email@example.com if you are interested in hosting future Radiology Grand Rounds. Archive for the Radiology Grand Rounds here-Radiology Grand Rounds. Be sure to tune in Next Month Last Sunday 26th November, when Grand Rounds will be hosted at- Spot Diagnosis Send the Submissions to- firstname.lastname@example.org
Saturday, October 28, 2006
Full Text-UCLA News
Hat Tip- Medgadget
Tuesday, October 24, 2006
Monday, October 23, 2006
Friday, October 20, 2006
Radiology Grand Rounds which will be hosted here on the last Sunday of this month on Sumer's Radiology Site. Anything that is relevant to Radiology or Medical Imaging will be accepted. You don’t have to be a radiologist to contribute. We would love to hear from Doctors, Nurses, Medical Students, Radiographers, Imaging Technicians, Patients, etc."
Please send in your submissions by email to-
Saturday, October 14, 2006
- Hippocampal involvement in dengue fever
- Preferential gray matter involvement in dengue myelitis.
- Unusual neurologic manifestations occurring during dengue fever infection.
- Hemorrhagic encephalopathy in dengue shock syndrome: a case report.
Tuesday, October 10, 2006
Friday, October 06, 2006
"Sirenomelia is a rare congenital anomaly characterized by abnormal development of the caudal region of the body with variable degree of fusion of lower extremities. It derives its name by its resemblance to the Mermaid ( Siren ) of Greek mythology. About 300 cases have been reported in the world so far out of which 9 have been reported in India. Sirenomelia is also known as Sirenomelia sequence, Symmelia, Symposia, Uromelia and Monopodia. The exact etiopathogenesis is uncertain. The proposed theories are Vascular steal or Vitelline artery steal theory by Stevenson which is the most accepted. Others include teratogenic effects of lead, cadmium and vit.A, primitive streak defect, axial mesodermal dysplasia sequence.Maternal diabetes mellitus and genetic predisposition is also implicated. Vitelline artery steal theory states that an aberrant vessel(derived from the vitelline artery) arises from high abdominal aorta in the affected fetus and functions as the vessel returning blood through the umbilical cord to placenta. This vessels steals blood from structures distal to its origin."
Ind J Radiol Imag 2006 16:2:203-204
Thursday, October 05, 2006
"With the advent of subsecond rotation combined with multi-slice CT (up to 64 slices), high resolution and high speed can be obtained at the same time, allowing excellent imaging of the coronary arteries. Images with a high temporal resolution are formed by updating a proportion of the data set used for image reconstruction as it is scanned. In this way individual frames in a cardiac CT investigation are significantly shorter than the shortest tube rotation time. It is uncertain whether this modality will replace the invasive coronary catheterization.
Cardiac MSCT carries very real risks since it exposes the subject to the equivalent of 500 chest X Rays in terms of radiation. The relationship of radiation exposure to increased risk in breast cancer has yet to be definitively explored.
Also a lot of MSCT technicians are trained cardiologist as opposed to radiologists. The positive (93-95%) and negative (97-98%) predictive values of the scan are calculated on the basis of a knowledgable staff which may not always be the case.
Much of the software is based on data findings from caucasian study groups and as such the assumptions made may also not be totally true for all other populations.
Dual Source CT scanners, introduced in 2005, allow higher temporal resolution when acquiring images of the heart, allowing a greater number of patients to be scanned. "
Wednesday, October 04, 2006
Not An Urban Legend
"They may not admit it, but some physicians around the country are asking veterinary facilities to image their morbidly obese patients. They are inquiring about airlifting out-of-state patients and even transferring them directly to animal hospitals with emergency personnel. "
Read the full article here-
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