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Biomedical subjects

M A Lerner

Publications and source records attributed to M A Lerner.

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

CT diagnosis of left atrial thrombus undiagnosed by echocardiography.

Although effectiveness of CT scan in the diagnosis of intracardiac masses is considered limited by heart pulsations, it may be effective in diagnosis of lesions not detected by echocardiography. This report presents a case where a large left atrial thrombus which was undiagnosed by 2D echocardiogram was diagnosed by CT scan.

Adult↗
PubMedDate not supplied

Primary CT diagnosis of gastrointestinal masses.

Four cases of gastrointestinal masses (3 tumorous and 1 inflammatory) diagnosed primarily by CT, are presented. It is stressed that the radiologist should be familiar with the CT appearance of these conditions. It is recommended that in most cases barium studies and endoscopy should follow. Case 4 is unique because it represents the rare possibility of CT diagnosis of a tumor of the bowel where barium studies and endoscopy may have failed.

Adenocarcinoma↗
PubMedDate not supplied

Evaluation of new diagnostic imaging technologies.

New imaging technologies have to be evaluated for safety and for utility taking into account the uniqueness of the biological feature examined, the quality of the anatomical visualization, and accuracy of diagnosis. Comparative studies establish whether the new technology complements or replaces older methods, and what contribution it makes to therapeutic strategies. Historically, there were three phases: that of the great lone innovators, from whose efforts new techniques diffused; that of the large cooperative studies by academic clinicians and, recently, with the advent of MRI (magnetic resonance imaging), the phase of publicly appointed assessors, such as the FDA (Food and Drug Administration, USA). The methods of the latter two are detailed and critically compared. Evaluation in the clinical setting is more comprehensive. Therapeutic benefit, and not just image quality, has to be the ultimate consideration.

Evaluation Studies as Topic↗