Medical

The Medical Image Catalogue contains a variety of medical imagery. Subjects range from photo-microscopy of murine neurological structures to x-ray and magnetic resonance imagery of human organs.

(alg1): 512×512 grayscale of algal cells (differential interference microscope). This image was collected as part of a research program to manage algal ponds for waste treatment. The objective is to identify, count and measure the cells. Any use of this image must include the acknowledgement: `We thank Dr. N. J. Martin, Scottish Agricultural College, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(axn1): 400×300 grayscale of axonal growth (microscope). This image and the next were used to investigate the directionality of growth of axons. In both scenarios, the target which the axons sought to innervate was located off to the right of the image. The initial/start position of the growing axons varies in each image. Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(axn2): 400×300 grayscale of axonal growth (microscope). Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(cel1): 597×403 8-bit color of embryonic mouse neurones (confocal microscope). This image (and cel2) were collected as part of a study investigating neuronal growth factors influencing cell longevity. The small white cells are dead. Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(cel2): 577×355 8-bit color of embryonic mouse neurones (confocal microscope). Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(cel4): 450×450 grayscale of human nerve cells (large dark) and glia cells (small black).
This image was collected as part of a research program investigating the effects of the AIDS virus on the quantity of nerve cells. Any use of this image must include the acknowledgement: `We thank R. Aguilar-Chongtay of the Department of Artificial Intelligence, University of Edinburgh for the use of this image.'
(cel5): 551×686 grayscale of embryonic mouse neurones with endothelial cell (upper left) (electronmicrograph). This image and the following image were used in a study comparing attributes of embryonic vs postnatal cells. (The younger cells are less round, smaller and darker.) Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(cel6): 546×672 grayscale of postnatal mouse neurones. Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(cel7): 546×680 grayscale of embryonic neurones and a blood cell enclosed within an endothelial cell.
Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(cla3): 200×260 grayscale of mouse nervous cells extracted on embryonic day 15 (transilluminated microscope).
This image (and clb3 and clc3) were collected as part of a study investigating neuronal growth factors influencing cell longevity. The dark cells are dead. Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(clb3): 200×260 grayscale of embryonic day 17 mouse nervous cells. Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(clc3): 200×260 grayscale of embryonic day 19 mouse nervous cells.
Any use of this image must include the acknowledgement: `We thank Dr. B. Lotto of the Department of Physiology, University of Edinburgh for the use of this image.'
(dna1): 300×512 grayscale of one stage in the DNA-sequencing of gene fragments (autoradiograph). In this study, approximately fifty mixtures were positioned as distinct spots along the top of the gel (as it is currently displayed). Each mixture then migrated and DNA fragments produced separate, approximately horizontal bands. Any use of this image must include the acknowledgement: `We thank Dr. F. G. Wright, Dr. C. Glasbey and Dr. G. W. Horgan Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(egg1): 512×512 grayscale of sheep parasite eggs (microscope).
Any use of this image must include the acknowledgement: `We thank Mr. S. Beard of the Department of Artificial Intelligence, University of Edinburgh for the use of this image.'
(fun1): 500×500 grayscale of part of a fungal mycelium Trichoderma viride, which is a network of hyphae from a single fungal organism (photograph of fungal hyphae on cellophane-coated nutrient agar). Image analysis was required here to understand the spatial structure of the hyphae in relation to their environment. Any use of this image must include the acknowledgement: `We thank Dr. K. Ritz of Scottish Crop Research Institute, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(mam1): 2048×2048 8-bit color mammography image of cancerous breast. (There are 3 cancers at coordinates (x,y,radius): (1374,1348,36), (1502,1178,20) and (1444,778,14).) Any use of this image must include the acknowledgement: `We thank Dr. P. Thanisch and Mr. A. Hume of the Department of Computer Science, University of Edinburgh for the use of this image.'
(mam2): 2048×2048 8-bit color mammography image of cancerous breast. (There are 5 cancers at coordinates (x,y,radius): (1278,126,80), (1248,908,50), (1178,567,50), (1669,409,192) and (612,1060,150).) Any use of this image must include the acknowledgement: `We thank Dr. P. Thanisch and Mr. A. Hume of the Department of Computer Science, University of Edinburgh for the use of this image.'
(mri1): 128×128 grayscale of woman's chest - where the subject has a cubic test object between her breasts (magnetic resonance imaging). This image and the next were obtained as part of an investigation into the changes in breast volume during the menstrual cycle. The aim of the study was to segment the images into different tissues. Any use of this image must include the acknowledgement: `We thank Dr. M. A. Foster, Biomedical Physics & Bioengineering, University of Aberdeen, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(mri2): 128×128 grayscale of woman's chest, where the subject has a cubic test object between her breasts (magnetic resonance imaging). Any use of this image must include the acknowledgement: `We thank Dr. M. A. Foster, Biomedical Physics & Bioengineering, University of Aberdeen, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(mus1): 512×512 grayscale of a section through a rat's soleus muscle. The transverse section has been stained to demonstrate the activity of Ca2+ (activated myofibrillar ATPase) and allows one to classify three types of fiber: fast-twitch oxidative glycolytic (dark), slow-twitch oxidative (light) and fast-twitch glycolytic (mid-gray). The quantity and size of the fibers are used for research into clenbuterol, a drug which enhances muscle development. Any use of this image must include the acknowledgement: `We thank Dr. C. A. Maltin, Rowett Research Institute, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(slt1): 1024×1024 binary showing locations of stellate lesions in image stl1. Any use of this image must include the acknowledgement: `Data for this research was provided by Dr. N. Karssemeijer and the University Hospital Nijmegen.'
(slt2): 1024×1024 binary showing location of stellate lesions in image stl2. Any use of this image must include the acknowledgement: `Data for this research was provided by Dr. N. Karssemeijer and the University Hospital Nijmegen.'
(soi1): 512×512 grayscale montage of a soil aggregate embedded in acrylic resin (backscattered electron scanning micrographs). The black areas are soil pores and the lighter areas are the inorganic and organic soil matrix. The image was used in a study of porosity and pore-size distribution within a sample of soil aggregates which related these characteristics to microbial activity in and outside the aggregates. Any use of this image must include the acknowledgement: `We thank Dr. J. F. Darbyshire, Macaulay Land Use Research Institute, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(stl1): 1024×1024 8-bit color of stellate lesions. Any use of this image must include the acknowledgement: `Data for this research was provided by Dr. N. Karssemeijer and the University Hospital Nijmegen.'
(stl2): 1024×1024 8-bit color of stellate lesions. Any use of this image must include the acknowledgement: `Data for this research was provided by Dr. N. Karssemeijer and the University Hospital Nijmegen.'
(usd1): 360×300 graylevel of a cross-section through a sheep's back (ultrasound). Images were collected in order to estimate sheep body composition. The top, approximately horizontal, white line is the transducer-skin boundary, below which are the skin-fat and fat-muscle boundaries. The backbone is on the bottom left, from which a rib can be seen sloping slightly upwards. Any use of this image must include the acknowledgement: `We thank Dr. G. Simm of Genetics and Behavioural Sciences, Scottish Agricultural College, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'
(usd2): 512×480 grayscale of heart (ultrasound).
(wrm1): 512×512 grayscale of nematodes (microscope).
(xra1): 256×256 grayscale of a cross-section through the thorax of a live sheep (x-ray computed tomography). This image was used in a study to estimate the quantity of fat and lean tissue. The lightest image areas are the backbone and the parts of the ribs which intersect the imaging plane. The muscles and internal organs appear slightly lighter than the fat tissue because they are slightly more opaque to x-rays. (The U-shaped plastic cradle in which the sheep was lying can also be seen.) x-ray attenuation is measured in Hounsfield units, which range between -1000 and about 1000. (The data have been reduced to the range -250 to 260, with all values < -250 assigned a pixel value of 0 and all values > 260 set to 255.) Any use of this image must include the acknowledgement: `We thank Dr. G. Simm of Genetics and Behavioural Sciences, Scottish Agricultural College, and Drs. C. Glasbey and G. W. Horgan of Biomathematics and Statistics Scotland, University of Edinburgh for the use of this image.'