Biomedical subjects

M van Vyve

Publications and source records attributed to M van Vyve.

5 recordsLinked to original sources

PubMed1994

Diagnostic imaging algorithm for cervical soft disc herniation.

MRI with surface coils is currently the preferred method for evaluating degenerative cervical spine disease. The differentiation between soft disc herniation and osteophytic spurs is not always obvious, however, on a 0.5 Tesla unit. The procedure of choice for soft disc herniation, MRI on a 0.5 T superconducting system associated with plain radiography of the cervical spine, in selecting patients for anterior cervical discectomy without interbody fusion (ACD), was evaluated. This prospective study comprised 100 patients with cervical radicular symptoms, not subsiding after conservative treatment. Plain radiographs were obtained for all patients. Patients without spinal instability, spondylosis, or major osteophytes on plain radiographs and without clinical findings of myelopathy underwent MRI (n = 59) on a 0.5 Tesla superconducting system. The other 41 patients underwent CT myelography. On MRI, herniation of a cervical soft disc was seen in 55 patients and the localisation corresponded well with the clinical symptoms. CT myelography showed a foraminal herniation in one of four selected patients with negative MRI. Fifty of 55 patients underwent ACD. All herniations were confirmed at operation, but in two patients there were important foraminal spurs not seen on MRI. It is concluded that 0.5 T MRI combined with plain radiographs offers an accurate, non-invasive test in the assessment of selected patients with cervical radiculopathy.

Adult↗

PubMed1992

Postsurgical follow-up by MRI of anterior cervical discectomy without fusion.

Postoperative magnetic resonance imaging (MRI) findings are described in selected patients with cervical radiculopathy and a cervical soft disc herniation, treated by anterior cervical discectomy (ACD) without fusion. Six months postoperatively, 45 patients underwent MRI examination using a 0.5 T superconductive unit. T1- and T2-weighted spin echo sequences were acquired on sagittal and axial planes. A low signal intensity on T2-weighted images was visualized at the ACD level in all patients. Five patients were found to have a slight kyphosis at the discectomy level. There was no residual disc material at any ACD level. In 5 patients, areas of diminished signal intensity on T1- and T2-weighted images on adjacent vertebrae was noticed, indicating sclerosis of the cortical bone adjacent to the ACD level. In 3 patients, cervical disc protrusions without impression on the dura were visualized postoperatively: 2 below and 1 above the ACD level. One patient developed a cervical disc herniation without complaints one level above the operated one. No patient developed infolding or degenerative swelling of the ligamenta flava and no intrinsic cord abnormalities were present. MRI provided useful information on pathology, allowing a non-invasive evaluation following ACD and enabling a better understanding of surgical consequences.

Adult↗

PubMed1985

Craniostenosis: the importance of the anesthesiologist.

Based on the experience with 15 patients operated for craniostenosis in our hospital, guidelines were determined for the anesthetic and postoperative management with optimal maintenance of vital parameters. Subgaleal accumulation of blood may cause a spectacular drop of hemoglobin level during the first postoperative days. Since it is better to prevent than to cure, systematic anti-convulsive and antibiotic prophylaxis must be considered.

Anesthesia, General↗

PubMed1977

[The arthritic narrow lumbar canal. Anatomoradiologic study - technical considerations].

The Narrowing of the lumbar canal by spondylosis appears as a frequent factor of cauda equina compression. There is a wide range of symptomatology : common low back pain and sciatalgia; neurogenic claudication with sensitive, motor or sphincter disturbance; radicular deficit at one or several levels. Radiological measurement of the anterior-posterior diameter of the lumbar canal does not give a good evaluation of the lesion. Qualitative analysis of spondylosis must be performed by special radiological investigation : plain X ray film and tomography shows the osteophytics spurs and articular hypertrophy; sacco-radiculography (Dimer X) with tomography and flexion-extension films shows the changes on the dural sac. Three types of lesions can be distinguish on anatomical and radiological grounds which carry a special operative management : the anterior type should be treated by discectomy, at one or more level; the posterior type needs facetectomy with or without laminectomy; the mixed type must be treated by combined operative procedures. Laminectomy only does not permit the cure of lateral radicular entrapment. Our results seem much better in our series since this diagnostic and therapeutic attitude is considered.

Aged↗

PubMedDate not supplied

Diagnostic imaging algorithm for cervical soft disc herniation.

MR imaging with surface coils is currently the preferred method for the evaluation of cervical soft disc herniation. However, the differentiation between soft disc herniation and osteophytic spurs in the neural foraminal canal is not always obvious on a 0.5 Tesla unit. Therefore the specificity for neural foraminal canal pathology has been reported not to be very high. We evaluated MRI in selected patients without major foraminal spurs or important spondylosis on plain radiography. This prospective study includes 100 patients with cervical radicular symptoms, not subsiding after conservative treatment. All patients underwent plain radiograms. Patients without spinal instability, spondylosis or major osteophytes on plain radiograms and without clinical findings of myelopathy underwent MRI (n = 59) on a 0.5 Tesla superconducting system. All 41 other patients underwent CT myelography. On MRI, a cervical soft disc herniation was observed in 55 out of 59 investigated patients and the localization corresponded well with the clinical symptoms. CT myelography demonstrated a foraminal herniation in 1 of 4 selected patients with negative MRI. Fifty out of 55 patients underwent anterior cervical discectomy without fusion. All herniations were confirmed at operation, but in two patients there were important foraminal spurs, not seen on MRI. The specificity of MRI in this study is 94%. It is concluded that 0.5 T MRI, combined with plain films offers an accurate, noninvasive test in the assessment of selected patients with cervical radiculopathy.

Adult↗