Biomedical subjects

P Fredericks

Publications and source records attributed to P Fredericks.

6 recordsLinked to original sources

PubMed1998

Fourier transform infrared spectrometry: a versatile technique for real world samples.

The versatility of FTIR spectrometry was explored by considering a variety of samples drawn from industrial applications, materials science and biomedical research. These samples included polymeric insulators, bauxite ore, clay, human hair and human skin. A range of sampling techniques suitable for these samples is discussed, in particular FTIR microscopy, FTIR emission spectroscopy, attenuated total reflectance and photoacoustic FTIR spectrometry. The power of modern data processing techniques, particularly multivariate analysis, to extract useful information from spectral data is also illustrated.

Hair↗

PubMed1987

Discordant hepatobiliary scintigraphy and computed tomography in hepatic metastasis.

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Adenocarcinoma↗

PubMed1987

Uptake of technetium-99m DTPA in a hepatic hemangioma.

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Female↗

PubMed1987

Ultrasonic localisation of a non-opaque intravascular catheter fragment.

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Adult↗

PubMed1986

Pectus excavatum defect on liver-spleen scintigraphy.

A 58-year-old man with a pectus excavatum demonstrated a photon-deficient defect within the left lobe of the liver on liver-spleen scintigraphy using Tc-99m SCOL. Computed tomography of the liver clearly revealed the abnormal defect seen on the liver-spleen scan to be due to the pectus excavatum. This case confirms the impression that these skeletal aberrations may cause false-positive hepatic defects.

Funnel Chest↗

PubMed1985

Bone scintigraphy in latent congenital syphilis.

A 26-year-old man with congenital syphilis presented with increased periosteal uptake of Tc-99m MDP during bone scintigraphy. In addition, bowing of the tibias and apparent shortening of the tibias were seen on the bone scan. Corresponding abnormalities were noted on roentgenography of the lower extremities.

Adult↗