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Biomedical subjects

A Meduri

Publications and source records attributed to A Meduri.

At least 19 recordsLinked to original sources
PubMed1991

[Computer-assisted report generation and image transmission in bedside chest x-rays in intensive therapy units].

Since a few years ago, in our department the bedside chest X-rays of intensive care patients have been reported by means of a computer program which has also storing function. This computer program is a guideline for the radiologist and is organized in pages having a logical sequence. The program has proved very useful in learning the correct reporting of bedside chest X-rays. The nosographic data of the patients, the ventilatory and the technical data are stored for a better clinico-radiological correlation. The last four reports are displayed on the monitor to better understand the patient's history. The other reports become part of a "historical" archive. Most important is the cooperation with the referring physician: to make the most of it, a system has been implemented which sends the images from the Radiology Department to Intensive Care. The images are filmed with a camera and then digitalized on 1024 x 768 matrix with 16 million colors and 256 gray levels. Each workstation is composed of: AT286 computer with 60-MB hard disk, hardware or the digitalization and compression of images, a high-resolution monitor, an intercommunication system, and a modem. It is possible to zoom on the images, but a close-up on the image with the camera is better for improved spatial resolution. The images are stored on the hard disk: each image requires 3M bytes, but it can be compressed down to 25:1 with no detail loss. The images are transmitted via modem in at least 20 seconds/image. More images can be sent out-line. During transmission, it is possible to talk by the intercommunication system, pointing out structures on the monitor or drawing objects on both sides of the system. In our experience, image quality is good. We are therefore considering extending the network to other Departments and making the transmission of images of pathologic specimens possible. The natural evolution of this system is the teleconsult.

Computer Communication Networks↗
PubMedDate not supplied

Photorefractive keratectomy for compound myopic astigmatism with the MEL-70 G-Scan excimer laser.

PURPOSE: To assess the safety, efficacy, predictability and stability of photorefractive keratectomy in compound myopic astigmatism with a moderate and high cylinder component. METHODS: Photorefractive keratectomy was done in 42 eyes with compound myopic astigmatism with the spherocylindrical algorithm of the MEL-70 excimer laser, with wide ablation zones. RESULTS: Spherical equivalent refraction changed from -4.19 +/- 1.65D to -0.05 +/- 0.31D, refractive cylinder from -2.01 +/- 0.71D to -0.09 +/- 0.20D and mean sphere from -3.22 +/- 1.76D to -0.02 +/- 0.26D. Mean uncorrected visual acuity rose from 0.12 +/- 0.17 to 0.91 +/- 0.10. No eye lost lines of spectacle-corrected visual acuity. The safety index was 1.03 and the efficacy index 0.98. Six months from the treatment all eyes were within +/- 1D, 8.9% of eyes were within 0.50D and 44% were plano of target refraction. Refractive and topographical stability were achieved between one and three months after treatment. Transient haze was observed between one and three months after PRK. CONCLUSIONS: Photorefractive keratectomy with the MEL-70 excimer laser to correct myopic astigmatism was a safe and effective procedure with good stability at six months' follow-up. Refractive and visual outcome confirmed that excellent predictability can be expected.

Adult↗
PubMedDate not supplied

Visual outcome after excimer laser refractive surgery in adult patients with amblyopia.

PURPOSE: To evaluate the visual and refractive outcome in adult patients wi th refractive and anisometropic amblyopia treated with photorefractive keratectomy. METHODS: An interventional non-comparative study was performed on 50 consecutive patients with amblyopia treated with photorefractive keratectomy. Sixty-eight eyes of 18 participants with bilateral refractive amblyopia and 32 participants with unilateral anisometropic amblyopia were studied. The photorefractive keratectomy was performed with MEL 70 G-Scan excimer laser. Follow-up was 1, 3, 6, and 12 months after the treatment. The mean outcome measures were uncorrected visual acuity (UCVA), best spectacle corrected visual acuity (BCVA), refraction, and corneal transparency. RESULTS: In 64.7% of eyes, the UCVA at 12 months after the treatment was better than or equal to their preoperative BCVA. A total of 82.4% of eyes improved their BCVA one or more lines. No eye lost lines of BCVA, 17.6% remained unvaried, 50% gained one line, 20.6 % gained two lines, and 11.8% gained three lines of BCVA. The number of lines gained correlated strongly with diopters of anisometropia between eyes (p<0.01). The mean sphere changed from -5.62+/-3.37 D to -0.47+/-1 D, mean cylinder varied from -2.36+/-1.57 to -0.18+/-0.41 D, and the spherical equivalent varied from -6.82+/-3.1 to -0.45+/-1.08 D. No clinically significant haze was observed. CONCLUSIONS: Excimer laser refractive surgery appears to be a safe and efficient procedure in the treatment of ametropic and anisometropic amblyopia in adults. Adult patients with anisometropic and refractive amblyopia could benefit from the refractive treatment with significant improvement of the visual acuity.

Adult↗
PubMedDate not supplied

Biochemical studies on equine infectious anaemia.

A description is given of an outbreak of equine infectious anaemia (E.I.A.) in Campania [at Naples and Aversa (Caserta)]; it was diagnosed by clinical, pathological and serological examinations (Coggins test). Using the serum of 45 horses with E.I.A. and 11 healthy horses (controls), numerous investigations were carried out on: enzymes, intrinsic coagulation factors, lipids and other substances. The results obtained were very interesting and show that in this disease there are significant increases in many enzymes (LDH, LAP, gamma-GT, CPK, PK and ALD) and copper. Insignificant increases were found in other enzymes (SDH, GLDH, MDH, ICDH, AIP, lysozyme, cholinesterase, GOT and GPT) and also intrinsic coagulation factors, lipid substances (total cholesterol, esterified cholesterol, triglycerides) and glucose. LDH-1-isoenzyme remains unchanged, whilst AcP decreases slightly.

Animals↗