Tag: "volume" at medical news
HPET & CT image fusion study reveals limitations for radiotherapy planning
...d be difficult for a therapist to refine treatment volume
using the co-registered HPET/CT images because the tumor edges on HPET images were not consistently defined, and because of image transfer issues between HPET and RTPS....
Study examines issues faced by teen-agers who move to the U.S.
...ses from 1,500 immigrants of all ages. While the volume
of research on leisure of racial and ethnic minorities including immigrant populations has been growing in recent years, the Illinois professor said only a handful of these studies have isolated problems faced by adolescent immigrants. And, she sa...
Columbia study finds differences in PSA, PSA density test measurements for Caucasian, Hispanic men
... surname.) Prior to biopsy, all patients underwent volume
measurements of the entire prostate. Of these pati...ese patients, PSAD (that is, PSA as a ratio to the volume
of the prostate) was calculated, and the data were broken down between the two ethnic groups and bet...
MRI brain scan may detect Alzheimer's disease decades before first symptoms
...he appearance of symptoms such as memory loss. The volume
of the hippocampus was measured with a new compute...ram that reduces the time required to compute this volume
from more than a half hour to a couple of minutes. Previous methods required tracing of this struct...
Preliminary US study findings support excellent results with CYPHER Sirolimus-eluting Stent
...which demonstrated the 94% reduction in neointimal volume
(restenosis) compared with the control," said Dr. Fitzgerald. "Additionally, there were no differences in vessel integrity or degree of intimal hyperplasia (cell formation) at the stent margins between the two groups. Further, there were no events ...
Impaired sodium excretion after stress contributes to hypertension in blacks
...is gone, a situation that keeps blood pressure and volume
elevated for prolonged periods and puts them at ri...cretion during stress, which increased their blood volume
and pressure and kept it up during the recovery period. (T)he results of this study provide support...
Repeat stenting not always durable
...six months later. The measurement is called lumen volume
index (LVI). Higher LVI means blood flows more ea...el. In patients treated with radiation, the lumen volume
was larger for the re-stented segments than the non-stented. However, at follow-up, researchers fou...
No greater risk if physician delivers fewer babies
... The authors divided physicians into 3 groups: low volume
(fewer than 12 deliveries per year; 72 physicians, 549 births); medium volume
(12-24 per year; 34 physicians, 871 births); and high volume
(25 or more per year; 46 physicians, 30...
Long-term survival results favor chemotherapy before surgery for locally advanced breast cancer
...ts were considered inoperable because of the sheer volume
of their tumors and the belief that they would soon die from spread of the disease well beyond the breast, or distant metastatic disease. Over the last decade, studies of neoadjuvant therapy for patients with large primary tumors had demonstrated th...
Cancer patients' loss of taste, smell compromises treatment
...man. Even among patients who are eating the same volume
of calories, those with taste and smell distortions may avoid foods with high nutritional value, such as fresh fruits and vegetables. Eliminating such nutritious foods can further depress immune function, said Schiffman. The causes of appetite and t...
Mayo Clinic study finds radiosurgery is effective alternative to surgery
...nnoma had tumor progression outside the irradiated volume
despite having both radiosurgery and fractionated radiation therapy; he died four years later. No patient with a lower cranial nerve schwannoma developed any hearing loss, facial weakness, or swallowing difficulty after radiosurgery. In the study, Dr...
Newly published data show at-home dialysis therapy may benefit more patients
... was prescribed a modified dose by increasing fill volume
(to 2.5 or 3L) or by increasing the number of exchanges to five daily with 2.5L to achieve a prescription target creatinine clearance of 60L per week. Patients enrolled in the study were randomly assigned to the treatment or the control groups. ...
Older patients who need high-risk surgery fare better in experienced hospitals
...t experienced hospitals are those with the highest volume
of procedures. Going to one made the biggest diffe...: only 3.8 percent of such patients at the highest volume
hospitals died, compared to 16.3 percent at lowest volume
hospitals - a 12.5 percentage point varian...
MGH study finds herceptin has additional antitumor qualities
...gy show that herceptin can reduce the diameter and volume
of tumor blood vessels, slow tumor growth, and prolong survival in animal models of cancer. "The beauty of this molecule is that it has multiple anti-angiogenic effects and so it acts like a cocktail of angiogenesis-blocking drugs," says Rakesh Jain...
Volume of mammograms read may influence accuracy of diagnosis
A new study suggests that reading a higher volume
of mammograms is associated with increased diagnos...ational Cancer Institute . "Our result that reader volume
affects cancer-detection accuracy is not very surprising," concludes Laura Esserman, M.D., M.B.A., U...
UCSF study shows breast cancer screening programs that interpret the most mammograms
...0 radiologists were divided into three groups: low volume
radiologists who read 100 or fewer mammograms per month, medium volume
radiologists who read 101-300 mammograms per month, and high volume
radiologists who read more than ...
American Thoracic Society Journal news tips for February (second issue)
... fixed (expenses hospitals must bear regardless of volume
of care.) Such costs are not amenable to cost savingsthrough reducing length of stay unless beds are closed and personnel fired. The results of various studies show that the most expensive ICU patients (those with the greatest length of stay)cannot...
Blood lactate measurement could lead to earlier identification of patients for liver transplant
...red early in the course of and after completion of volume
resuscitation. We expect that this approach will further improve the speed and accuracy of selection of appropriate candidates for transplantation....
New medical system for colon cancer screening
...o the medical application discussed here, Kaufmans volume
graphics algorithms have been widely used in scientific data visualization and also to render battlefield scenes....
Pitt's transplant team uses standard stem cell procedure in unique way for recipient of living donor kidney transplant
...ree or four hours, can be repeated if a sufficient volume
of cells is not obtained in one session.) The stem cells were then placed in a special medium and frozen until their infusion into the kidney transplant recipient. Stem cell transplantation has never been used in conjunction with living donor kidney ...
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