SU563750A1

SU563750A1 - Skenner

Info

Publication number: SU563750A1
Application number: SU762320717A
Authority: SU
Inventors: М.П. Баранов; М.И. Девишев; Г.А. Зубовский; Р.Н. Тураев
Original assignee: Московский Ордена Трудового Красного Знамени Научно-Исследовательский Рентгенорадиологический Институт
Priority date: 1976-02-03
Filing date: 1976-02-03
Publication date: 1979-02-25

Description

1one

Изобретение относитс к медицинской технике, а именно к приборам, предназначенным дл оценки распределени радиоактивных препаратов в теле пациента при радиоизотопных исследовани х.The invention relates to medical technology, in particular to devices for assessing the distribution of radioactive drugs in the patient's body during radioisotope research.

Известен, скеннер, содержащий ложе дл укладки пациента, подвижное детектирующее устройство с коллиматором и двум детекторами, блок высоковольтного питани и блок регистрации сигна1лов. ..A scanner is known, which contains a patient bed, a movable detection device with a collimator and two detectors, a high-voltage power supply unit, and a signal recording unit. ..

Однако известное устройство не позвол ет получать высокое пространственное разрешени.- скеннограммы и две профйлограммы одновременно с различньлх участков тела пациента.However, the known device does not allow to obtain high spatial resolution. Scannograms and two profilograms simultaneously from different parts of the patient's body.

Цель изобретени - повьдиение пространственного разрешени скеннограммы и одновременное. двух профилограмм с различных участков тела пациента.The purpose of the invention is to increase the spatial resolution of the scannogram and at the same time. two profilograms from different parts of the patient’s body.

Это достигаетс тем, что скеннер снабжен коллимирующей системой, состо щей из щелевой насадки и сменных свинцовых вкладышей, дополнительным блоком регистрации сигналов и дополнительным блоком высоковольтного питани , причем щелева насадка установлена над отверстием коллимато2This is achieved by the fact that the scanner is equipped with a collimating system consisting of a slit nozzle and replaceable lead inserts, an additional signal recording unit and an additional high-voltage power supply unit, with the slit nozzle mounted above the collimator hole.

ра, а свинцовые вкладыии установлены в отверстии коллиматора между детекторами.pa, and lead deposits are installed in the collimator hole between the detectors.

На фиг. 1 изображена блок-схема скеннера; на фиг. 2 - коллимат.ор с щелевой насадкой и вкладышами, общий вид, на фиг. 3 - разрез А-А фиг. 2.FIG. 1 is a block diagram of a scanner; in fig. 2 — collimator orif with a slit nozzle and inserts, general view; FIG. 3 - section A-A of FIG. 2

Скеннер содержит ложе 1 дл укладки пациента, подвижное детектирующее устройство с коллиматором 2 и двум детекторами 3 и 4, два блока 5 высоковольтного питани , два блока 6 регистрации сигналов, коллимирующую систему, состо щую из щелевой насадки 7 и сменных свинцовых вкладышей 8, причем щелева насадка 7 вьшолнена над отверстием коллиматора 2, а свинцовые вкладыии 8 установлены в отверстии коллиматора между детекторами 3 и 4.The scanner contains a bed 1 for placing the patient, a movable detection device with a collimator 2 and two detectors 3 and 4, two high voltage power supply units 5, two signal recording units 6, a collimating system consisting of a slit nozzle 7 and interchangeable lead inserts 8, and a slit nozzle 7 is made above the collimator hole 2, and lead inserts 8 are installed in the collimator hole between detectors 3 and 4.

Скеннер работает следующим образом .Schenner works as follows.

Claims

When moving the collimator 2 with detectors 3 and 4 under the bed 1, on which the patient is located, and evil. The data from the organs or parts of the organs located at a given time in the field of view of each of the sensors is registered independently 35 and in the form of two profile curves, is simultaneously recorded on the signal recording block b / When conducting dynamic studies, the detecting part of the scanner automatically performs shuttle movements (along beds with the patient in the forward and reverse directions) in the region of the test organ (for example, the kidneys), and two series of profilograms are recorded (for example, the first series over the left kidney, in torus above the right). Each profilogram of such a series corresponds to a single passage of detectors under the body, the amplitude at the maximum of the profilogram corresponds to the activity recorded at the given time from the preparation in the organ under study. Due to the division of the field of view of the detectors into two parts, improving the resolution of the profile scanner in the longitudinal and transverse directions to the selection of the second recording channel, the diagnostic efficiency of the proposed profile scanner increases significantly, especially during dynamic studies, as there is a new opportunity to evaluate the function of several organs simultaneously. but (two kidneys and blood clearance in the region of the heart, liver and clearance, etc. in static studies, the proposed device will allow comparison The distribution of activity in symmetrical organs (kidneys, lungs, 0 hemispheres of MO-FH, etc.), in addition, by improving the resolution, the influence of background radiation from neighboring organs and extraneous sources is minimized. the number of injected radioactive drugs.The research is simplified, the study time is reduced due to the elimination of permutations and switching during the examination of the patient. The cost of the instrument varies slightly. Claims of the invention: A scanner comprising a patient bed, a movable detection device with a collimator and two detectors, a high voltage power supply unit and a signal recording unit, characterized in that, in order to increase the spatial resolution of the scannogram and simultaneously obtain Two profilograms from different parts of the patient’s body, The scanner is equipped with a collimating system consisting of a slit nozzle and a replaceable lead insert, an additional signal recording unit and an additional unit power supply, the slit nozzle is installed above the collimator hole, and lead inserts are installed in the collimator hole between the detectors.

HELL

Fig.Z