Short communication: use of the output video signal for dynamic range, brightness control and image memory assessment in X-ray fluoroscopy

The output video signal from three X-ray fluoroscopy machines was recorded with a storage oscilloscope to calculate the dynamic range of their image intensifier television camera chains. The two MERATE MTH90 and MGR50hf machines employed the same imaging chain but the response of the former to expos...

Full description

Saved in:
Bibliographic Details
Published in:British journal of radiology Vol. 69; no. 825; p. 855
Main Author: Okkalides, D
Format: Journal Article
Language:English
Published: England 01.09.1996
Subjects:
Fluoroscopy - standards
Humans
Quality Control
ISSN:0007-1285
Online Access:Get more information
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract The output video signal from three X-ray fluoroscopy machines was recorded with a storage oscilloscope to calculate the dynamic range of their image intensifier television camera chains. The two MERATE MTH90 and MGR50hf machines employed the same imaging chain but the response of the former to exposure was significantly lower because of a three channel light distribution optical system which was installed but not used. The CGR Stenoscope machine was found to have a very narrow dynamic range to the extent that it was not usable. Additional measurements on the CGR machine showed that the image intensifier brightness control mechanism would produce stabilized brightness in less than 0.4 s and it proved to be faster than the manual selection of exposure parameters. The quality of the image stored in the memory device on the same system was compared with the original by subtracting the two video signals on the oscilloscope and thus acquiring a quantitative measure of their difference.
AbstractList The output video signal from three X-ray fluoroscopy machines was recorded with a storage oscilloscope to calculate the dynamic range of their image intensifier television camera chains. The two MERATE MTH90 and MGR50hf machines employed the same imaging chain but the response of the former to exposure was significantly lower because of a three channel light distribution optical system which was installed but not used. The CGR Stenoscope machine was found to have a very narrow dynamic range to the extent that it was not usable. Additional measurements on the CGR machine showed that the image intensifier brightness control mechanism would produce stabilized brightness in less than 0.4 s and it proved to be faster than the manual selection of exposure parameters. The quality of the image stored in the memory device on the same system was compared with the original by subtracting the two video signals on the oscilloscope and thus acquiring a quantitative measure of their difference.
The output video signal from three X-ray fluoroscopy machines was recorded with a storage oscilloscope to calculate the dynamic range of their image intensifier television camera chains. The two MERATE MTH90 and MGR50hf machines employed the same imaging chain but the response of the former to exposure was significantly lower because of a three channel light distribution optical system which was installed but not used. The CGR Stenoscope machine was found to have a very narrow dynamic range to the extent that it was not usable. Additional measurements on the CGR machine showed that the image intensifier brightness control mechanism would produce stabilized brightness in less than 0.4 s and it proved to be faster than the manual selection of exposure parameters. The quality of the image stored in the memory device on the same system was compared with the original by subtracting the two video signals on the oscilloscope and thus acquiring a quantitative measure of their difference.The output video signal from three X-ray fluoroscopy machines was recorded with a storage oscilloscope to calculate the dynamic range of their image intensifier television camera chains. The two MERATE MTH90 and MGR50hf machines employed the same imaging chain but the response of the former to exposure was significantly lower because of a three channel light distribution optical system which was installed but not used. The CGR Stenoscope machine was found to have a very narrow dynamic range to the extent that it was not usable. Additional measurements on the CGR machine showed that the image intensifier brightness control mechanism would produce stabilized brightness in less than 0.4 s and it proved to be faster than the manual selection of exposure parameters. The quality of the image stored in the memory device on the same system was compared with the original by subtracting the two video signals on the oscilloscope and thus acquiring a quantitative measure of their difference.
Author Okkalides, D
Author_xml – sequence: 1
  givenname: D
  surname: Okkalides
  fullname: Okkalides, D
  organization: Radiation Physics Laboratory, IPPOKRATEIO General Hospital, Thessaloniki, Greece
BackLink https://www.ncbi.nlm.nih.gov/pubmed/8983591$$D View this record in MEDLINE/PubMed
BookMark eNo9UM1qGzEY1MHFsZ2-QQrfKaduq5WtlZRbMUlaMPSQBnIzWu2ntcpKciRtYV-hT50NNT0N88PAzJosQgxIyE1Nv9SMq6-UUlHVTPKqUZVkvJKcL8jqv3xF1jn_fqdc0SVZSiW3XNUr8vfpFFMBE70fgzO6uBjuYMwI0UI5zTCW81jgj-swQnZ90APYmKCbgvbOQNKhx8_QJtefSsCc565QUhxAhw6c1z2CRx_TBDrn2fcYCrgAL1XSE9hhjClmE8_TNflg9ZDx4wU35Pnh_tf-e3X4-fhj_-1Q9bUQpeLIUO6saLBtKeOGc1oj327bljXbnamp6jor68bsBCpKLdpGcyMME0J0TWvZhtz-6z2n-DpiLkfvssFh0AHjmI9CcqmE2s3BT5fg2Hrsjuc0z0nT8XIeewNR13UB
ContentType Journal Article
DBID CGR
CUY
CVF
ECM
EIF
NPM
7X8
DOI 10.1259/0007-1285-69-825-855
DatabaseName Medline
MEDLINE
MEDLINE (Ovid)
MEDLINE
MEDLINE
PubMed
MEDLINE - Academic
DatabaseTitle MEDLINE
Medline Complete
MEDLINE with Full Text
PubMed
MEDLINE (Ovid)
MEDLINE - Academic
DatabaseTitleList MEDLINE
MEDLINE - Academic
Database_xml – sequence: 1
  dbid: NPM
  name: PubMed
  url: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed
  sourceTypes: Index Database
– sequence: 2
  dbid: 7X8
  name: MEDLINE - Academic
  url: https://search.proquest.com/medline
  sourceTypes: Aggregation Database
DeliveryMethod no_fulltext_linktorsrc
Discipline Medicine
Physics
ExternalDocumentID 8983591
Genre Journal Article
Comparative Study
GroupedDBID ---
.55
.GJ
0R~
169
18M
1CY
1KJ
1OB
1OC
23N
24P
2WC
33P
34G
36B
39C
4.4
53G
5GY
5RE
5WD
6J9
AANLZ
AASGY
AAUAY
AAWTL
AAXRX
ABCUV
ABDFA
ABEFU
ABEJV
ABGNP
ABJNI
ABNHQ
ABQNK
ABSZQ
ABXGK
ABXVV
ACAHQ
ACCZN
ACGFO
ACGOF
ACPOU
ACXBN
ACZBC
ADBBV
ADBTR
ADIPN
ADMGS
ADOZA
ADVOB
ADXAS
AEGXH
AEIGN
AENEX
AEUYR
AFFNX
AFFQV
AGMDO
AHMMS
AI.
AIACR
AIAGR
AIURR
ALMA_UNASSIGNED_HOLDINGS
ALUQN
AMYDB
AOIJS
BAWUL
BCRHZ
BFHJK
C1A
C45
CGR
CS3
CUY
CVF
DCZOG
DIK
DRFUL
DRMAN
DRSTM
DU5
E3Z
EBD
EBS
ECM
EIF
EJD
EMB
EMOBN
F5P
FRP
GX1
H13
HDBZQ
HYE
IH2
J5H
K-O
KBYEO
KOP
L7B
LATKE
LEEKS
LYRES
MXFUL
MXMAN
MXSTM
N4W
NPM
OCZFY
OJZSN
OK1
OVD
OWPYF
P0W
P2P
PKN
RJQFR
ROX
RPM
SJN
SUPJJ
SV3
TEORI
TR2
TUS
TWZ
TXR
UCJ
VH1
W8F
WOQ
X7M
ZGI
ZXP
ZZTAW
7X8
ADNBA
AJAOE
AJNCP
ID FETCH-LOGICAL-g177t-5e2e84f76ebb025c5501e533bb2634c109ddf816c47e900fef6a5c7c2777d6bf2
IEDL.DBID 7X8
ISSN 0007-1285
IngestDate Mon Sep 29 06:41:37 EDT 2025
Wed Feb 19 01:22:20 EST 2025
IsPeerReviewed true
IsScholarly true
Issue 825
Language English
LinkModel DirectLink
MergedId FETCHMERGED-LOGICAL-g177t-5e2e84f76ebb025c5501e533bb2634c109ddf816c47e900fef6a5c7c2777d6bf2
Notes ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
PMID 8983591
PQID 78589794
PQPubID 23479
ParticipantIDs proquest_miscellaneous_78589794
pubmed_primary_8983591
PublicationCentury 1900
PublicationDate 1996-Sep
PublicationDateYYYYMMDD 1996-09-01
PublicationDate_xml – month: 09
  year: 1996
  text: 1996-Sep
PublicationDecade 1990
PublicationPlace England
PublicationPlace_xml – name: England
PublicationTitle British journal of radiology
PublicationTitleAlternate Br J Radiol
PublicationYear 1996
SSID ssj0007590
Score 1.4742897
Snippet The output video signal from three X-ray fluoroscopy machines was recorded with a storage oscilloscope to calculate the dynamic range of their image...
SourceID proquest
pubmed
SourceType Aggregation Database
Index Database
StartPage 855
SubjectTerms Fluoroscopy - standards
Humans
Quality Control
Title Short communication: use of the output video signal for dynamic range, brightness control and image memory assessment in X-ray fluoroscopy
URI https://www.ncbi.nlm.nih.gov/pubmed/8983591
https://www.proquest.com/docview/78589794
Volume 69
hasFullText
inHoldings 1
isFullTextHit
isPrint
link http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwpV1La9tAEB6SJim99OEk1H2kc-gxSyR5V7tbAiGUmh4SE-gD34z2lRgaybWtgv9CfnVnJdnNpeSQiw4CCbEaffpm9pv5AD66JEQPJEpTHU8YV14wkxeK8TQYYYPitim4_byQo5Eaj_XVFpyue2GirHKNiQ1Qu8rGGvmJVEJpCp6z2W8WPaPi3mpnoLENO4N0oKJxgxz_mxUuRVthicU4QmHRNc4R3z_ZnGO5ZpQjMSXE_ylm86sZvnjcQ76E5x3FxPM2Jl7Bli978PSy20TvwV6j-rSLfbj7dkPsG-39JpFPWC88VgGJGWJVL2f1EmOvXoVR6kH3JZaLrvWxx3lsTThG06T4ETSxk75jUTqc3hJY4W3U8q6w2IwAxWmJYzYvVhh-1VWcplnNVgfwY_jl--evrDNnYNeplEsmfOYVDzL3xhBvspTppJ64ozFZPuA2TbRzQaW55dLrJAk-5IWw0mZSSpebkB3Ck7Iq_WtAa1xmfZIX2hmufaYJ-IqB8VyaYGXi-vBhvdoTCv64o1GUvqoXk_V69-GwfWGTWTujY6I0UUudvnnw0rfwrBViR9nYO9gJ9NX797Br_yyni_lRE1J0HF1d_gXL99i9
linkProvider ProQuest
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Short+communication%3A+use+of+the+output+video+signal+for+dynamic+range%2C+brightness+control+and+image+memory+assessment+in+X-ray+fluoroscopy&rft.jtitle=British+journal+of+radiology&rft.au=Okkalides%2C+D&rft.date=1996-09-01&rft.issn=0007-1285&rft.volume=69&rft.issue=825&rft.spage=855&rft_id=info:doi/10.1259%2F0007-1285-69-825-855&rft_id=info%3Apmid%2F8983591&rft_id=info%3Apmid%2F8983591&rft.externalDocID=8983591
thumbnail_l http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=0007-1285&client=summon
thumbnail_m http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=0007-1285&client=summon
thumbnail_s http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=0007-1285&client=summon