2: Ter Arkh. 2005;77(10):57-61.Related Articles, Books, LinkOut
[Infrared thermography in diagnosis of breast cancer (review of foreign
literature)]
[Article in Russian]
[No authors listed]
PMID: 16320687 [PubMed - in process]
26: Med Eng Phys. 2005 Aug 30; [Epub ahead of print]Related Articles,
Books, LinkOut
A comparative study for the development of a thermal odoscope for the wearable
dynamic thermography monitoring.
Giansanti D, Maccioni G, Gigante GE.
Dipartimento Tecnologie e Salute, Istituto Superiore di Sanita, Viale Regina
Elena, 299, 00161 Rome.
BACKGROUND:: The need of the reliable continuous monitoring of temperature is
rising in many clinical applications. Today the use of thermography has become
central for instance in the analysis of breast cancer, for the survey of
inflammatory processes and certain skin areas during physical exercise. The
core of the problem is the development of an ad hoc instrument, because
traditional methodologies such as infrared and liquid crystals are no longer
suitable. MATERIAL AND METHODS:: We developed a dedicated simulation set-up
using Matlab R12 procedures (The Mathworks, USA) and P-spice models
(Interlink, USA). We simulated the realisation and use of three different
equipment configurations for thermography, one based on PTC sensors, another
on thermocouples, a third one on specific integrated silicon components. We
also bench tested one prototype. RESULTS:: The results showed the feasibility
of the realisation of the instrument and the validity of the data obtained by
means of the simulation.
74: Wiad Lek. 2004;57 Suppl 1:87-90.Related Articles, Books, LinkOut
[Thermography in the early detection of breast cancer--our own experiences]
[Article in Polish]
Golab-Lipinska MV, Jakubowska T, Wysocki M, Kaluzna K, Peszynski-Drews C.
Z Centrum Diagnostyki i Terapii Laserowej Politechniki Lodzkiej.
miklipa@poczta.onet.pl
In combination with X-ray mammography and clinical examination thermography
adds to the accuracy of breast cancer diagnosis. Thermographic examinations
can be repeated at short intervals with no radiation hazard to the patient.
However, performing and interpreting thermograms requires meticulous training.
It was found that women with an abnormal thermogram are at a higher risk and
have a poorer prognosis. A change in the thermal pattern is often the earliest
sign of a cancer. The authors believe that the fault lies in misinterpretation
of the thermogram, rather than the thermogram itself. Computer stimulations
could be an adjunct tool to help the clinician in the interpretation.
88: Phys Med Biol. 2005 Apr 7;50(7):1585-600. Epub 2005 Mar 22.Related
Articles, Books, LinkOut
Ultrasound phase-contrast transmission imaging of localized thermal variation
and the identification of fat/tissue boundaries.
Clement GT, Hynynen K.
Department of Radiology, Harvard Medical School, Brigham and Women's Hospital,
75 Francis St. Boston, MA 02115, USA. gclement@hms.harvard.edu
We present a new ultrasound technique for registering localized temperature
changes in soft tissues. Conversely, small temperature changes may be induced
in order to image tissue layers. The concept is motivated by the search for a
compact, low cost method for guiding noninvasive thermal therapies; however
its utility may extend to a wide range of imaging problems such as tumour
imaging in the breast. This method combines ultrasound transmission imaging,
planar projection techniques and phase-contrast theory. After outlining the
theoretical foundation of the technique, its feasibility is tested by
simulating localized heating within homogeneous tissue layers. Success of this
imaging method is evaluated as a function of the ultrasound-imaging wavelength
for a Gaussian-shaped heated region over the frequency range from 0.1 to 2
MHz. Furthermore we simulate two-dimensional image reconstruction from a
receiving array. We conclude that thermal phase-contrast imaging in tissues is
plausible for detecting the treatment spot in thermal therapies while
operating at frequencies below 1 MHz. Additionally, it may also be possible to
use the method for noninvasive thermometry. However, thermometry would require
operation at higher frequencies at the tradeoff of increased attenuation and
higher sensitivity to scattering, which needs to be further explored.