(n.) An instrument for measuring the area of any plane figure, however irregular, by passing a tracer around the bounding line; a platometer.
Example Sentences:
(1) Left ventricular cavity and muscle areas of each image were planimetered with a light-pen system and summated for volume: total volume = sigma (areas x 3 mm).
(2) A comparative study of roentgenograms of the paranasal sinuses between 37 patients with cleft lip and palate and 37 control subjects of the same age group was done using a planimeter.
(3) A planimeter was used to measure total vessel, plaque, thrombus, and luminal cross-sectional areas at the site of plaque rupture with thrombosis in sections projected at 13.8 power magnification.
(4) Techniques for determining stone surface area include use of graph paper, planimeter or computerized image analysis.
(5) The postpneumonectomy pleural space (PS), thoracic space of the operated site (TS) and the thoracic space of the non-operated site (CTS) were measured at 3 slice levels of the brachiocephalic level, subcarinal level and lower pulmonary vein level, using a digital planimeter.
(6) By application of of Jacobj's linear method and Lange's curvimeter-planimeter method, these approximation formulas are used to calculate the surface areas with identical semi-axis and diameter values being inserted, and the results are compared with each other and the true values.
(7) Fragments of formalin-fixed, paraffin-embedded tissue were re-embedded in plastic, sectioned at 1 micron, stained with methylene blue, and studied with a Zeiss-Kontron MOP-3 microprocessor-assisted planimeter.
(8) The glottal waveforms measured by sonic-sensing pen tracing, cursor outlining, a photocell technique, and television camera scanning are presented and compared with the conventional polar planimeter method.
(9) The weight of each slice was calculated by multiplying the planimetered surface area of the LV myocardium by slice thickness and by myocardial specific gravity (1.05).
(10) A simple method for quantifying the cells adhering to frozen sections of mouse spleen using a microscope equipped with a drawing tube attachment, and a planimeter is described.
(11) A computing planimeter was employed to count the total number of neurons and measure the volume of the LC, neuronal cross-sectional area, and percent of neuronal area occupied by neuromelanin in the brains of 39 subjects; 13 "normative", 15 leucotomized schizophrenic (most had died in the preneuroleptic era), and 11 leucotomized non-schizophrenic control patients, ranging in age from 11 to 94 years.
(12) The integrator-derived values for WOB correlated well with planimeter-derived values (r = 0.97).
(13) A planimeter was used to measure artery, plaque, thrombus and luminal cross-sectional area at the site of plaque rupture with thrombosis in sections projected at x13.8 magnification.
(14) The area of open wound remaining was measured with a planimeter, and the rate of healing was plotted for each.
(15) Video fields were planimetered for epicardial ventricular cross-sectional area and ventricular pressure.
(16) Each aorta was processed blindly by four pathologists and a computerized planimeter to determine normal areas, sudanophilic areas and areas covered by plaques.
(17) The areas of MFD were measured by a polar planimeter and correlated with the involved wall, the total slice area, parietal widths and involved muscles.
(18) Areas of paradoxical motion and inward motion were planimetered in each quarter of ejection.
(19) After tracing each wound on transparency film, wound area was calculated by (1) multiplying length and width measurements with a ruler, (2) placing the transparency film over graph paper and counting the squares, (3) using a planimeter, and (4) using a digitizer.
(20) The areas of subretinal neovascularization and scotomata are measured in square millimeters with a planimeter.
Planimetry
Definition:
(n.) The mensuration of plane surfaces; -- distinguished from stereometry, or the mensuration of volumes.
Example Sentences:
(1) Paraffin sections (8 microns) containing the medial habenular nucleus were stained with cresyl violet and both left and right medial habenular nuclei were measured by planimetry.
(2) Data of ether-extracted total fat content versus data of fat marbling planimetry correlated well with r = 0.9.
(3) beta-TG levels did not correlate with the volume of cerebral infarction as measured by planimetry from CT scans.
(4) Mean fiber area, determined by planimetry, was 49.1 and 34.5% greater following enlargement in male and female mice, respectively.
(5) Regurgitant volume was calculated from reverse aortic flow and was compared to jet length, area (by planimetry) and volume (from Simpson's rule).
(6) The lungs of bleomycin-treated dogs which received urokinase had less severe fibrosis and this was confirmed by morphometry with planimetry and the point counting method.
(7) In the interpretation of the tracings, significant differences were found for all measures, except planimetry; however, not all of these have the same practical implications.
(8) Gastric antral endoscopic pinch biopsies from a group of dyspeptic patients were analysed for acute and chronic inflammatory cell numbers in the lamina propria and surface epithelial layer using computer-linked graphic tablet planimetry, and independently graded for Campylobacter pylori (CP) infection using a visual scoring system with grade 1 assessed as patchy epithelial infection and grade 2 as a continuous layer of organisms on the mucosal surface extending into gastric pits.
(9) Amplitude, duration and magnitude (as measured by planimetry) of anal relaxation elicited by rectal distensions were related to rectal distending volume (P less than 0.001).
(10) Blood-brain barrier disruption was assessed by spread of Evans blue dye with planimetry.
(11) Human coronary arteries were perfusion-fixed; sectioned and their external and lumenal circumferences measured by microscopic planimetry.
(12) The surface areas of the wheal and flare responses were measured by planimetry.
(13) Planimetry of transmission electron micrographs showed 59% of the intraepithelial membranes were stained with lanthanum in the DNP-OA-sensitized and DNP-OA-challenged group; 39% in the saline-sensitized, DNP-OA-challenged group, and 26% in the DNP-OA-sensitized, BGG-challenged group.
(14) Planimetry of megakaryocytes (MK) was performed in bone marrow biopsies (BMBs) from patients with chronic myeloproliferative disorders (CMPD) to substantiate cytomorphologic differences in this cell lineage between the four main groups of CMPD.
(15) At the age of 7, mastoid X-rays were obtained and the air cell areas measured by planimetry.
(16) The menu for the data analysis provided for this device includes multilinear densitometry, with planimetry, area densitometry, measurement of anterior chamber depth and thickness of lens layers, determination of chamber angle and positioning of implanted intraocular lenses, and measurement of opaque areas in the retroillumination image.
(17) The effect of nitroglycerin and ibuprofen, given between 2 and 7 days after left anterior descending coronary artery ligation, on the mechanical resistance of the infarcted left ventricle to rupture or the rupture threshold (balloon technique), and on topography (computerized planimetry) and function (two-dimensional echocardiography) at 7 days (n = 32) and 42 days (n = 34) postligation was studied in 66 dogs randomly allocated to sham (no infarction, n = 22) and infarction subgroups (15 controls; 15 received nitroglycerin, 30 mg oral isosorbide dinitrate b.i.d.
(18) Three commonly used prostate volume measurement techniques were analyzed: planimetry, prolate ellipse volume calculation (HWL), and an ellipsoid volume measurement technique.
(19) NRL was quantified by planimetry of photographs of cut sections of brain.
(20) In this study we have measured gland size by planimetry,and cellular activity by autoradiography using tritiated thymidine and tritated histidine.