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Biomedical subjects

B D Pressman

Publications and source records attributed to B D Pressman.

22 records · Page 2Linked to original sources
PubMedDate not supplied

MR imaging of temporomandibular joint abnormalities associated with cervical hyperextension/hyperflexion (whiplash) injuries.

Patients often have temporomandibular joint (TMJ) dysfunction-related symptoms after cervical hyperextension/hyperflexion injuries ("whiplash") caused by rear-end motor-vehicle collisions. To determine abnormalities of the TMJ associated with these injuries, 33 consecutive symptomatic patients (66 joints) with no direct trauma to the jaw, mouth, head, or face due to the accident and no prior history of TMJ dysfunction underwent magnetic resonance (MR) imaging, and the images were retrospectively analyzed. Overall, 29 (88%) patients had some type of TMJ abnormality related to whiplash injury. Displacement of the disk was seen in 37 (56%) of the TMJs as follows: 21 (32%) had anterior displacement with reduction, nine (14%) had anterior displacement without reduction, six (9%) had lateral or medial displacement, and one (2%) had posterior displacement. On T2-weighted images, 43 (65%) TMJs had abnormal joint fluid or edema, predominantly affecting the joint capsule and/or lateral pterygoid muscles. The finding that many of the patients had joint fluid and/or soft-tissue edema indicates that T2-weighted images are especially useful for assessment of patients with a history of whiplash injury.

Adult↗
PubMedDate not supplied

Low-dose metrizamide spinal computed tomography in outpatients.

Delineation of the thecal sac in CT can be improved by the presence of intrathecal metrizamide. This may be especially helpful in postoperative patients in whom the landmarks are often obscured by epidural scarring. Metrizamide-enhanced CT was performed on outpatients using 2 1/2 ml metrizamide (170 mg I/ml). Follow-up is available on 40 patients. The procedure was well tolerated with only three instances of severe headache, one case of vomiting, and no reported seizures. Adequate opacification was obtained at 92% of the levels examined with fair opacification at the remainder of the levels. This technique is considered a safe and useful outpatient procedure.

Adult↗