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P F Varley

Publications and source records attributed to P F Varley.

3 recordsLinked to original sources
PubMed1977

Pancreatic scanning using retrograde injection of technetium-99m-labeled compounds.

With increased clinical availability of endoscopic retrograde pancreatography, a method for retrograde injection of radionuclides into the pancreas became available. A dog model was developed to evaluate resolution and toxicity of retrograde imaging prior to human use. Two groups of technetium-99m-labeled compounds were used. The first included ionic carriers--pertechnetate and pyrophosphate--and the second included particulate carriers--sulfur colloid and albumin microspheres. Parenchymal visualization, absorption patterns, and toxicity in dogs were studied. The results suggest that pyrophosphate, sulfur colloid, and albumin microspheres would all be feasible technetium carriers for use in humans.

Animals↗
PubMed1976

The normal endoscopic pancreatogram.

Pancreatograms of 102 patients with proved normal pancreatic status were reviewed to establish normal standards of pancreatic ductal morphology, and precise details of ductal course, position, length, caliber, and variant anatomy were analyzed. The ampulla was found at the level of the second lumbar vertebra in 75% of cases, while the pancreatic duct crossed the spine at L1 in most cases. Mean ductal diameters were 3.1, 2.0 and 0.9 mm in the head, body, and tail of the pancreas, respectively.

Adolescent↗