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Biomedical subjects

K Gersten

Publications and source records attributed to K Gersten.

5 recordsLinked to original sources
PubMed1999

Squamous cell carcinoma of the buccal mucosa.

The purpose of this study was to establish treatment criteria for patients with early-stage squamous cell carcinoma of the buccal mucosa. Thirty-one patients were analyzed in a retrospective fashion. Distribution of patients according to tumor stage was relatively even. Within 5 years recurrent disease developed in nearly 80% of evaluable patients. There was a 100% overall incidence of local disease recurrence for patients with stage I and II tumors treated with wide local excision alone and followed up for more than 2 years. On the basis of these data, we conclude that wide local excision for early-stage buccal carcinoma is associated with a high local failure rate. Possible causes for failure and alternative treatment approaches are discussed.

Adult↗
PubMed1988

Computed tomography of abdominal aortic aneurysm. An in vivo pathological report with a note on dynamic predictors.

A group of computed tomography (CT) descriptors were derived for abdominal aortic aneurysms. Terminology was defined and applied to the interpretation of the CT image in 55 prospective cases. Correlation of geometric parameters of aneurysm and analysis of the relationship of internal aneurysm components such as lumen and thrombus was performed. Predictive growth patterns for aneurysm demonstrated a synchronous increase in the volume of thrombus within the aneurysm in those aneurysms measuring 5 to 7 cm. Aneurysms greater than 7 cm were associated with an expansion of the patent pulsatile lumen, with no appreciable increase in thrombus volume. The thrombus-lumen ratio effectively described the changing internal architecture of aneurysm associated with increase in size. Proper utilization of CT descriptors develops a language that interprets aneurysm stability and potential for rupture and may provide an improved basis for timely surgical planning.

Aged↗
PubMed1987

Lower extremity swelling: computerized tomography following negative venography.

In 21 patients who had lower extremity swelling and negative venography, radiographic evaluation was extended to include computerized tomography (CT) of the lower extremity, which we have termed venography-CT, or VCT. All patients were referred with the diagnosis of deep vein thrombosis (DVT) and no patient had a history of trauma. CT was effective in demonstrating two occult mechanisms of lower extremity swelling: knee joint effusion (three patients) and intramuscular hemorrhage (five patients). Selective utilization of CT in the evaluation of lower extremity swelling is effective in directing the clinical management of these patients.

Adult↗
PubMed1981

[The role of mathematical models in microhemorheology (author's transl)].

The basic fluid-mechanical and structural elements that determine the microhemorheological behavior of blood are presented and discussed. Microhemorheological models are classified into three groups: empirical models, theoretical models, and hybrid models. Major contributions in each area are reviewed and the state-of-the-art in microhemorheological modelling is discussed. Finally, important areas of future research are delineated.

Biomechanical Phenomena↗