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Liver Scanning with Colloidal Radiogold; Exploration du foie a l'aide de l'or radioactif colloidal; Issledovanie pecheni pri pomoshchi radioaktivnogo kolloidal'nogo zolota; Exploracion del higado con oro coloidal radiactivo

Abstract

The authors report their experience in the use of colloidal Au{sup 198} for liver scanning. To obtain a good differentiation of liver from surrounding organs and tissues, a tracer dose of 2.5 {mu}C/kg is usually required. The whole scanning procedure, starting 30 minutes after intravenous injection, takes about 90 minutes, when carried out with fully automatic equipment. Upper and lateral liver contours are usually better defined than the lower one; the use of focusing collimators (honeycomb type) increases the resolution remarkably. In normal conditions the liver is the only organ clearly evident on the scan; the spleen may also become evident in some cases of splenomegaly and liver cirrhosis, probably on account of the reduction of reticuloendothelial system of the liver. In the experience of the authors, the efficiency of the technique is very poor for the detection of liver metastases of small size, not inducing changes of the volume and shape of the liver. In fact, uncertain results have been obtained even in cases of micronodular metastatic diffusion, confirmed at operation. The Au{sup 198} scanning may be of help in cases with diffuse or zonal enlargement, whatever the origin, in order to establish whether the changes are due to  More>>
Authors:
Donato, L; Becchini, M F; Panichi, S [1] 
  1. Centro di Medicina Nucleate, University of Pisa (Italy)
Publication Date:
Jul 01, 1959
Product Type:
Conference
Resource Relation:
Conference: Seminar on Medical Radioisotope Scanning, Vienna (Austria), 25-27 Feb 1959; Other Information: 13 figs, 19 refs; Related Information: In: Medical Radioisotope Scanning. Proceedings of a Seminar| 278 p.
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; DETECTION; DOSES; EFFICIENCY; FILMS; GASTROINTESTINAL TRACT; INTRAVENOUS INJECTION; LIVER; LIVER CIRRHOSIS; METASTASES; PATIENTS; RETICULOENDOTHELIAL SYSTEM; SPLEEN; SPLENOMEGALY; SURGERY; X RADIATION
OSTI ID:
22025600
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); World Health Organization, Geneva (Switzerland)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N1546112893
Submitting Site:
INIS
Size:
page(s) 87-103
Announcement Date:
Jan 17, 2013

Citation Formats

Donato, L, Becchini, M F, and Panichi, S. Liver Scanning with Colloidal Radiogold; Exploration du foie a l'aide de l'or radioactif colloidal; Issledovanie pecheni pri pomoshchi radioaktivnogo kolloidal'nogo zolota; Exploracion del higado con oro coloidal radiactivo. IAEA: N. p., 1959. Web.
Donato, L, Becchini, M F, & Panichi, S. Liver Scanning with Colloidal Radiogold; Exploration du foie a l'aide de l'or radioactif colloidal; Issledovanie pecheni pri pomoshchi radioaktivnogo kolloidal'nogo zolota; Exploracion del higado con oro coloidal radiactivo. IAEA.
Donato, L, Becchini, M F, and Panichi, S. 1959. "Liver Scanning with Colloidal Radiogold; Exploration du foie a l'aide de l'or radioactif colloidal; Issledovanie pecheni pri pomoshchi radioaktivnogo kolloidal'nogo zolota; Exploracion del higado con oro coloidal radiactivo." IAEA.
@misc{etde_22025600,
title = {Liver Scanning with Colloidal Radiogold; Exploration du foie a l'aide de l'or radioactif colloidal; Issledovanie pecheni pri pomoshchi radioaktivnogo kolloidal'nogo zolota; Exploracion del higado con oro coloidal radiactivo}
author = {Donato, L, Becchini, M F, and Panichi, S}
abstractNote = {The authors report their experience in the use of colloidal Au{sup 198} for liver scanning. To obtain a good differentiation of liver from surrounding organs and tissues, a tracer dose of 2.5 {mu}C/kg is usually required. The whole scanning procedure, starting 30 minutes after intravenous injection, takes about 90 minutes, when carried out with fully automatic equipment. Upper and lateral liver contours are usually better defined than the lower one; the use of focusing collimators (honeycomb type) increases the resolution remarkably. In normal conditions the liver is the only organ clearly evident on the scan; the spleen may also become evident in some cases of splenomegaly and liver cirrhosis, probably on account of the reduction of reticuloendothelial system of the liver. In the experience of the authors, the efficiency of the technique is very poor for the detection of liver metastases of small size, not inducing changes of the volume and shape of the liver. In fact, uncertain results have been obtained even in cases of micronodular metastatic diffusion, confirmed at operation. The Au{sup 198} scanning may be of help in cases with diffuse or zonal enlargement, whatever the origin, in order to establish whether the changes are due to enlargement of normally functioning tissue, or to the presence of intrahepatic pathologic entities. It has been found very helpful to combine liver scanning with x-ray examination of liver contours after carrying out a pneumoperitoneum, in order to compare anatomical and functional patterns. Scintigraphs and x-ray contours are normally superimposable, and the finding of significant discrepancies may be helpful in evaluating the possibility of surgical or radiation treatment in patients with tumours, especially of the gastrointestinal tract. Of course, a negative result will not rule out the possibility of liver metastases. Original scintigraphs and corresponding x-ray films are presented, and the results of major interest are discussed. (author) [French] Les auteurs decrivent la facon dont ils ont utilise l'Au{sup 198} pour l'exploration du foie. On se sert generalement d'une dose indicatrice de 2,5 {mu}C/kg pour distinguer nettement le foie des organes et tissus environnants. L'ensemble de l'exploration, qui commence 30 minutes apres l'injection intraveineuse, dure environ 90 minutes lorsqu'elle est faite avec un materiel entierement automatique. Les contours superieurs et lateraux du foie apparaissent d'ordinaire plus clairement que le contour inferieur; en se servant de collimateurs a focalisation (du type alveolaire) on accroit beaucoup la resolution. Normalement, le foie est le seul organe qui ressorte clairement; la rate peut egalement apparaitre dans certains cas de splenomegalie et de cirrhose du foie, probablement a cause de la reduction du systeme reticulo-endothelia l du foie. Les auteurs ont constate que cette technique ne permet guere de deceler les metastases du foie de petite dimension qui n'entrainent aucun changement dans le volume et la forme de l'organe. En fait, les resultats sont incertains meme dans les cas de diffusion metastatique micronodulaire confirmee par l'intervention operatoire. En cas d'hypertrophie diffuse ou zonale, quelle qu'en soit l'origine, l'exploration a l'aide de l'Au{sup 198} peut servir a determiner si les changements sont dus a l'hypertrophie de tissus fonctionnant normalement ou a la presence de corps pathologiques a l'interieur du foie. Les auteurs ont constate qu'il etait tres utile de combiner l'exploration du foie avec l'examen radiologique des contours de l'organe apres un pneumoperitoine, de facon a comparer le schema anatomique et le schema fonctionnel. Normalement, les scintigrammes et la radiographie des contours doivent coincider, et tout ecart important peut aider a determiner la possibilite d'une intervention chirurgicale ou radiotherapeutiqu e chez les patients qui souffrent de tumeurs, notamment dans l'appareil gastro-intestinal. Bien entendu, un resultat negatif n'exclut pas la possibilite de l'existence de metastases du foie. Les auteurs presentent des scintigrammes originaux, avec les radiographies correspondantes, et commentent les resultats les plus significatifs. (author) [Spanish] Los autores describen la experiencia que han adquirido con el empleo del {sup 198}Au para la exploracion del higado. Para diferenciar satisfactoriamente el higado de los organos y tejidos circundantes se requiere, por lo general, una dosis indicadora de 2,5 mcuries/kg. El procedimiento de exploracion, que se inicia 30 minutos despues de la inyeccion intravenosa, dura en total unos 90 minutos cuando se lleva a cabo con un equipo completamente automatico. Por lo general, los contornos superior y lateral del higado se destacan con mas claridad que el contorno inferior; el uso de colimadores de enfoque de tipo alveolar permite aumentar la resolucioen de manera considerable. En condiciones normales, el higado es el unico organo que aparece claramente en este tipo de examen; en algunos casos de esplenomegalia y de cirrosis hepatica, tambien puede observarse el bazo, probablemente a causa de la reduccion del sistema reticulo-endotelial del higado. Los autores han comprobado que esta tecnica es poco eficaz para la deteccion de pequenas metastasis del higado que no alteran ni el volumen ni la forma del organo. En realidad, los resultados son inciertos aun en los casos de difusion metastatica micronodular, confirmada al operar al paciente. En los casos de hipertrofia difusa o localizada, sea cual fuere su origen, la exploracion con {sup 198}Au puede resultar util para establecer si los cambios se deben a la hipertrofia de un tejido que funciona normalmente, o a la presencia de cuerpos patologicos en el interior del higado. Los autores han obtenido buenos resultados combinando la exploracion del higado con el examen radiologico de los contornos del organo despues de un neumoperitoneo, pues de esa forma pueden compararse los esquemas anatomico y funcional. (author) [Russian] Avtory soobshchayut o svoem opyte v ispol'zovanii kolloidal'nog o zolota Ah{sup 198} dlya issledovaniya pecheni. Dlya polucheniya chetkogo razgranicheniya pecheni ot sosednikh organov i okru-zhayushchikh tkanej obychno trebuetsya doza mechenykh ehlementov, sootvetstvuyushcha ya 2,5 {mu}C/Kg. Vsya protsedura issledovaniya, kotoraya nachinaetsya cherez 30 minut posle vnutrivennogo vspryskivaniya, zanimaet okolo 90 minut pri ispol'zovanii polnost'yu avtomaticheskoj apparatury. Verkhnie i bokovye kontury pecheni obychno luchshe razlichayutsya chem nizhnie. Ispol'zovanie fokusiruyushchi kh kollimatorov (poristogo tipa) znachitel'no uluchshaet poluchaemye rezul'taty. V obychnykh usloviyakh pechen' yavlyaetsya edinstvennym organom, kotoryj chetko viden na ehkrane. V nekotorykh sluchayakh pri splenomegalii i tsirroza pecheni mozhno krome togo videt' i selezenku, veroyatno v svyazi s sokrashcheniem retikulo-ehndotelialyyuj sistemy pecheni. Sudya po priobretennomu avtorami opytu, dannyj metod ves'ma maloehffektive n dlya opredeleniya nebol'shikh metastazov pecheni, kotorye ne izmenyayut ob{sup e}ma i Formy poslednej. Dazhe v sluchayakh podtverzhdennog o operatsiej nalichiya mnozhestva razbrosannykh melkikh uzelkov metastaticheskog o kharaktera issledovaniya ehtim metodom dali neyasnye rezul'taty. Ispol'zovanie radioaktivnog o zolota-198 mozhet v sluchayakh rasseyannogo ili zonal'nogo rasshireniya - nezavisimo ot prichiny - sposobstvovat' vyyasnesho, vyzvany li ehti izmeneniya rasshireniem normal'no funktsioniruyushche j tkani ili zhe nalichem v tkani pecheni patologicheski kh obrazovanij. Ochen' udalnym okazalos' sochetanie radioizotopnog o issledovaniya pecheni s issledovaniem ee konturov rentgenovskimi luchami posle provedeniya pnevmoperitoneuma, tak kak ono pozvolyaet provesti sravnenie mezhdu anatomicheskim i funktsional'ny m sostoyaniem dannogo organa. Kontury, poluchaemye na stsintigrammakh i na rentgenovskikh snimkakh, obychno sovpadayut, i obnaruzhenie znachitel'nykh raskhozhdenij mozhet okazat' pomoshch' pri opredelenii vozmozhnosti khirugicheskogo ili radiatsionnogo lecheniya zkoka-chestvennykh zabolevanij, osobenno zheludochno-kishechnog o trakta. Konechno, otritsatel'nyj rezul'tat ne isklyuchaet vozmozhnosti nalichiya metastazov v pecheni. Vosproizvodyats ya podlinnye stsintigrammy i sootvetstvuyushchi e rentgenovskie snimki; obsuzhdayutsya rezul'taty, predstavlyayushchi e naibol'shij interes. (author)}
place = {IAEA}
year = {1959}
month = {Jul}
}