The Medicare rules governing the supervision of diagnostic tests have changed over time, as have the skills and training of radiologist assistants, who may have the education and clinical skills to deliver surgical and invasive procedures often performed as part of a radiology practice. However, for the purposes of Medicare coverage, radiologist assistants are not yet recognized as independent ...

Objective- The purpose of this study was to investigate the feasibility of performing echocardiography in apparently healthy pigeons, and measurement of the quantitative cardiac indices using B-mode and Doppler techniques. Design- Experimental study Animals- Ten apparently healthy pigeons Procedures- Echocardi...

This work shows that single sequencing reactions analyzed on an automated DNA sequencer can be an efficient way of screening PCR products for known mutations. We have analyzed a mutation in exon 10 of the human aromatase gene and show that an unambiguous genotype could be elucidated in more than 90% of the analyzed samples. Compared to analysis by full sequencing, 4 times more samples can be an...

A rapid and simplified fluorescence in situ hybridization (FISH) technique for the detection of human chromosome-specific centromeric probes is described. Using chromosomes 1-, 4-, 11and Y-specific fluorescence-labeled probes, the modified, or quick-FISH technique, was compared to two conventional FISH methods. The modified FISH technique detected human chromosomes without sacrificing sensitivi...

Accurate diagnosis is the prerequisite for effective treatment of diseases. Various biostatistics indices have been used to evaluate the performance of diagnostic tests. The distribution of test results commonly shows a relatively fixed overlap between the diseased and non-diseased populations, and the two main properties of laboratory tests sensitivity (Se) and specificity (Sp) usually demonst...

W hen a suspicious lesion is noted on the chest x-ray film, a battery of procedures is employed to establish the diagnosis and extent of the disease. Bronchoscopy; lymph node biopsy, biopsy of the lesion; liver, bone and brain scanning; and efforts to determine if the lesion is primary or metastatic are all used in careful selection and staging. This discussion is limited to a brief review of s...

We describe a technique for arthroscopy of the wrist which is carried out without traction and with the arm lying horizontally on the operating table. The wrist is not immobilised, which makes it possible to assess the extent of instability after a ligamentous tear. In a prospective study of 30 patients we compared this technique with conventional wrist arthroscopy, performing the new method fi...

Spectrometric techniques for the analysis of trace lead have developed rapidly due to the increasing need for accurate measurements at extremely low levels of this element in diverse matrices. This review covers separation and preconcentration procedures, and considers the features of the application with several spectrometric techniques. The use of an appropriate sample handling technique is a...

Spectrometric techniques for the analysis of trace lead have developed rapidly due to the increasing need for accurate measurements at extremely low levels of this element in diverse matrices. This review covers separation and preconcentration procedures, and considers the features of the application with several spectrometric techniques. The use of an appropriate sample handling technique is a...

In the past decade, the neuroradiological diagnosis and treatment of cerebrovascular diseases has undergone significant advances. With the introduction of varying diagnostic and interventional neuroradiological techniques and advances in the materials used for endovascular treatment, increasingly complex diagnostic and therapeutic neuroradiological procedures are being performed on extremely si...