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Biomedical subjects

J D Larédo

Publications and source records attributed to J D Larédo.

7 recordsLinked to original sources
PubMed2003

[Interventional lumbar spine radiology].

Three different techniques will be discussed. The first procedure is the biopsy of the lumbar vertebra or lumbar intervertebral disc for patients with tumors or infections of the lumbar spine. The different needles that can be used in function of consistency and location of the lesion will be shown. The transpedicular and posterolateral techniques will be described. Cementoplasty for tumors and selected patients with osteoporotic vertebral collapse generates much interest. The transpedicular and posterolateral techniques will be described. Indications and complications, more frequent in patients with tumors, will be reviewed. Finally, foraminal injections of steroids in patients with radicular symptoms secondary to degenerative change will be discussed. Techniques for needle placement will be reviewed. Results from these injections will also be reviewed.

Adrenal Cortex Hormones↗
PubMed1999

[A quality reference manual for radiology].

The purpose of this article is to introduce a quality manual for radiology departments. A radiology department has implemented a quality improvement program since 1996. This manual was developed as a tool for quality improvement program. This manuscript, was based on foreign accreditation manuals as well as from French experiences and summarized. In addition, new criteria were added, especially in the field of interventional radiology. This reference book is first dedicated to the self-assessment of radiology departments. It can also be used for an external audit.

Accreditation↗
PubMed1990

Synovial membrane: percutaneous biopsy.

With use of fluoroscopy, new techniques of percutaneous synovial biopsy (PSB) of large joints of limbs (other than the knee) were developed. PSB was performed on outpatients with the use of local anesthesia. Eighty-four biopsies (hip, 57; shoulder, 10; elbow, six; wrist, five; and ankle, six) were performed. With experience, modifications evolved in the PSB technique. The main technical refinements were use of a Tru-Cut needle introduced through a Jamshidi trephine needle, placement of the cutting window parallel to the anterior aspect of the joint, and selection of an optimal approach and biopsy site. With these improvements, the success rate for obtaining synovial membrane was raised from 48% to 81%. No complications were encountered.

Adolescent↗
PubMed1986

Thoracic spine: percutaneous trephine biopsy.

Forty-one percutaneous trephine biopsies of thoracic vertebral bodies or disks from T-3 to T-12 were performed under fluoroscopic guidance without complications. Biopsy technique was improved by a new set of trephine needles using a procedure similar to vascular catheterization and specific prone-oblique positioning of the patient. On a 35 degrees prone-oblique view, the heads (dorsal extremities) of the ribs determine the direction of puncture. Both pleura and spinal canal are easily recognized and avoided. Of 40 cases, there were 31 true-positive results, six contributory results, and three false-negative results. Percutaneous biopsy of the thoracic spine with this technique is a safe, rapid, and reliable procedure.

Biopsy↗