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412 Section II: Diagnostic RadiologyMacromoleculeProtons bound tomacromoleculeHydrationLayer. .Bulk WaterI IH.,H:~,H H.,H:010 --I: I )H.JiOHI H./{ I H.,H1 0 0H.,HIH.,H1 0 1 0IH.,HI-(,H I0H.,H~,HO H.nH.,H00A: 01,H • I H.,H)H3~,H I 01 11. ,H0 H.I,HH.,HO~,H~H.,H H.,HIH.,H° I 00 010H.,H1: H.,H O. : H.,H» H.,HI 0 H.,H I ~,H 00IH.,HO I01 0 II IRF Excitation(off-resonance pulse)~FIGURE 14-34. Magnetization transfer contrast is implemented with an offresonanceradiofrequency pulse of about 1,500 Hz from the Larmor frequency.Excitation and dephasing of hydrogen atoms on the surface of macromoleculesis transferred via the hydration layer to adjacent "free water"hydrogen atoms. A partial saturation of the tissues reduces the signals thatwould otherwise compete with signals from blood flow.Axel L, et al. Glossary of MR terms, 3rd ed. Reston, VA: American College of Radiology, 1995.Brown MA, Smelka RC. MR: basic principles and applications. New Yotk: John Wiley & Sons,1995.Hendrick RE. The AAPM/RSNA physics tutorial for residents. Basic physics of MR imaging: anintroduction. Radiographies 1994; 14:829-846.NessAiver M. All you really need to know about MRl physics. Baltimore: Simply Physics, 1997.Plewes DB. The AAPM/RSNA physics tutorial for residents. Contrast mechanisms in spin-echoMR imaging. Radiographies 1994; 14: 1389-1404.
Page 14:
Preface xvAcknowledgmentsForeword x
Page 18:
Chapter 9: Fluoroscopy 2319.1 Funct
Page 22:
16.3 Transducers 48316.4 Beam Prope
Page 26:
B.3 Radiological Data for Elements
Page 32:
We are deeply grateful to that part
Page 38:
Can medical physics be interesting
Page 46:
INTRODUCTION TO MEDICALIMAGINGMedic
Page 50:
FIGURE 1-2. The chest x-ray is them
Page 54:
FIGURE 1-4. A computed tomography (
Page 58:
angles around the patient. These pr
Page 62:
FIGURE '-8. Sagittal (upper left),
Page 66:
ducer, which records the returning
Page 70:
TABLE 1-1. THE LIMITING SPATIAL RES
Page 76:
WAVELENGTH(nanometers)FREQUENCY(her
Page 80:
The physical properties of the most
Page 84:
The energy required to remove an el
Page 88:
An electron cascade does not always
Page 92:
160150140130120110100N
Page 96:
The binding energy can be calculate
Page 102:
INTERACTION OF RADIATIONWITH MATTER
Page 106:
x10 3 7becomes electrically neutral
Page 110:
Electrons can undergo inelastic int
Page 114:
The nuclide produced by neutron abs
Page 118:
Compton scattering results in the i
Page 122:
CharacteristicX-rays:A: 0.6 keV (N~
Page 126:
10030 \~ r.." Photoelectric Effect
Page 130:
Attenuation is the removal of photo
Page 134:
The relationship between material d
Page 138:
HVL). Most practical applications o
Page 142:
MFP = 1- = __ 1__ = 1.44 HVLI.l 0.6
Page 146:
For x- and gamma rays, kerma can be
Page 150:
1 R = 2.58 X 10- 4 C/kg (exactly)Ra
Page 154:
TABLE 3-4. RADIATION WEIGHTING FACT
Page 158:
TABLE 3-6. RADIOLOGICAL QUANTITIES,
Page 162:
Computers were originally designed
Page 166:
TABLE 4-2. CONVERSION OF 42 (DECIMA
Page 170:
Binary Representationof Signed Inte
Page 174:
Chapter 4: Computers in Medical Ima
Page 178:
TABLE 4-5. MAXIMAL ERRORS WHEN DIFF
Page 182:
Main memory is used for these funct
Page 186:
A CPU fetches and executes the inst
Page 190:
FIGURE 4-6. Hard-disk drive. Aread/
Page 194:
Table 4-6 compares the characterist
Page 198:
erwise identical, the computer with
Page 202:
function, such as a disk head crash
Page 206:
Scintillation camera planarSPECTPET
Page 210:
(1.4 MB/disk)(l,024 2 bytes/MB)/[(6
Page 214:
DAC converts each digital number to
Page 218:
UnpolarizedlightHorizontallypolariz
Page 222:
FIGURE 4-15. Graphs of four transla
Page 226:
For example, it is often useful to
Page 234:
X-RAY PRODUCTION, X-RAYTUBES, AND G
Page 238:
1 _2 -3-1Impact with nucleus:Maximu
Page 242:
FIGURE 5-4. Generation of a charact
Page 246:
Cable sockets ~FIGURE 5-6. The majo
Page 250:
~C1.61.41.2 _~ 1.0::l0 0.8Q).00.62-
Page 254:
Rotor~~ ~+-statorFIGURE 5-11. The a
Page 258:
There are three major tradeoffs to
Page 262:
FIGURE 5-16. Various tools allow me
Page 266:
5.3 X-RAY TUBE INSERT, TUBE HOUSING
Page 270:
TABLE 5-3. MINIMUM HALF VALUE LAYER
Page 274:
Induced electronflow in conductorRe
Page 278:
Power is the rate of energy product
Page 282:
used to modulate voltage, autotrans
Page 286:
mAand mAscontrolPhototimercircuitsF
Page 290:
(a)Electron flow through single rec
Page 294:
asic components of a single-phase t
Page 298:
In three-phase generator designs, h
Page 302:
greater overall input power). Next,
Page 306:
nected to the contactors that dose
Page 310:
600500~5 4001:~•..=:l()300Q).0=:l
Page 314:
100% Ripple \5% Ripple /\ ••.-
Page 318:
TABLE 5-6. X-RAY TUBE FOCAL SPOTSIZ
Page 322:
Chapter 5: X-Ray Production, X-Ray
Page 326:
of the chart. Like the single-expos
Page 330:
Projection radiography, the first r
Page 334:
IEi\\i~eFIGURE 6-2. The sides andhe
Page 338:
sure on the screens, the cassette m
Page 342:
version efficiency, the approximate
Page 346:
(and vice versa). This phenomenon i
Page 350:
~80o"-'"{)' 70c.~ 60lij 50c.240 .
Page 354:
film OD. If the screen is made thic
Page 358:
Film has excellent spatial resoluti
Page 362:
-(/l~ 2.0-c:8 1.51.0-(/l~ 2.0-c:8 1
Page 366:
educed latitude. The shaded region
Page 370:
TABLE 6-2. TISSUE HALF-VALUELAYERS
Page 374:
PrimaryScatterFIGURE 6-22. A: Scatt
Page 378:
ferent locations from within the pa
Page 382:
lar to the direction of the slits.
Page 386:
FIGURE 6-30. Air gap geometry canre
Page 392:
silver halidecrystalssensitivityspe
Page 396:
•FIGURE 7-3. The fate of an expos
Page 400:
DeveloperActivatorRestrainerPreserv
Page 404:
increased too much because the numb
Page 408:
can be achieved. Film manufacturers
Page 412:
Modern x-ray equipment is computer
Page 416:
wee en0.25Ol0U. 0.20+Q)(f) 0.15COCO
Page 422:
Mammography is a radiographic exami
Page 426:
Other modalities that have been use
Page 430:
plished by magnetic induction. A so
Page 434:
ReferenceAxisCentra0AxisProjectedfo
Page 438:
30 kVp26 kVp30 kVp26 kVp(b)2.01.81.
Page 442:
OJE 25.E(fl.9 20o~ 15"'___ to 45 x
Page 446:
TABLE 8-2. REQUIREMENTS FOR MINIMUM
Page 450:
TerminationCircuitFIGURE 8-15. The
Page 454:
simulations and experimental measur
Page 458:
1.21.11.00.90.80.70.60.50.40.30.20.
Page 462:
2!£.= 1.85 xSODSOD35cmSID65cmOlD30
Page 466:
Film BaseFilm EmulsionPhosphor Scre
Page 470:
equiring a compensatory increase in
Page 474:
0.25 -Base + Fog0.20Density 0.150.1
Page 478:
characteristic curves, the correspo
Page 482:
achieving a pixel size at the image
Page 486:
Chapter 8: Mammography 223TABLE 8-6
Page 490:
ifies that the mammography facility
Page 494:
TABLE 8-9. SUMMARY TABLE OF ANNUAL
Page 498:
preting radiologists, mammography t
Page 504:
with the fluoroscopy imaging chain
Page 508:
FIGURE 9-4. A scanningelectron micr
Page 512:
cm 2 area of the 9-inch-diameter in
Page 516:
_ 100~I 20 em patient ~~•.... _~-
Page 520:
Video CamerasGeneral OperationThe c
Page 524:
FIGURE 9-11. The flat panelimaging
Page 528:
higher. Cine radiography uses very
Page 532:
put, and consequently frame averagi
Page 536:
contrast" selections on the console
Page 540:
specific applications, such as GIIG
Page 544:
3'2'E~wtJ)w 0.3~,======_o~"~~--;~ _
Page 548:
time estimate of the amount of radi
Page 552:
.~! ~i !j t--------------Ij• •s
Page 556:
'E 2O . O 80(,)~ 100_70-~0CIlIIIr::
Page 560:
40003500CIl 3000::s~ 2500CIlB 2000U
Page 564:
can be radically changed. Therefore
Page 568:
FIGURE 10-10. A: An isometric displ
Page 572:
FIGURE 10-13. Some physical mechani
Page 576:
some clinical applications, the blu
Page 580:
would correspond to 1 cycle/mm. If
Page 584:
I;:' 0.6irI-:!: 0.41.0 2.0 3.0 4.0S
Page 588:
or stochastic component into the im
Page 592:
~~2IIIs:::I I>o40 60 80 100 120 140
Page 596:
The term quantum is defined as "som
Page 600:
Stage Description System P System Q
Page 604:
.g tides:eis.Ec(~ co~o o 2 4 6 8 10
Page 608:
detectorelements[-I I detector aper
Page 612:
Since most patient anatomy does not
Page 616:
detail curves are commonly used in
Page 620:
actually calls nor-The specificity
Page 626:
Digital radiographic image receptor
Page 630:
-8 0.8:J:=~0.6«g! 0.4:;:;ellGi0::
Page 634:
to a very bright light source, whic
Page 638:
Lens Coupled Intensifying ScreenFIG
Page 642:
discretedetectorelementsFIGURE 11-7
Page 646:
light sensitive areaFill Factor = a
Page 650:
for digital stereotactic biopsy. Br
Page 654:
Because the slot width (4 mm) is mu
Page 658:
One of the advantages of having an
Page 662:
ness. Windowing and leveling of a d
Page 666:
nel is called a delta function,anyw
Page 670:
pixels are averaged to go from a 51
Page 674:
Geometric tomography, also called b
Page 678:
ground anatomy causes geometric tom
Page 682:
of relatively rapid readout, allowi
Page 686:
system, the amount of vascular sten
Page 690:
dual-energy subtraction is availabl
Page 696:
point on the image. Consequently, w
Page 700:
FIGURE 13-3. Computedtomographic (C
Page 704:
FIGURE 13-5. First-generation (rota
Page 708:
FIGURE 13-7. Third-generation (rota
Page 712:
FIGURE 13-10. The fan beam geometry
Page 716:
helical x-ray tubepath around patie
Page 720:
septa that separate the individual
Page 724:
detector array modules. With a trad
Page 728:
Slice Thickness: MultipleDetector A
Page 732:
This implies that the upper limit o
Page 736:
FIGURE 13-22. An image of a test ob
Page 740:
The constant ~t factors out, result
Page 744:
6 8A+B=77 A+C=6A+D=57 B+C=9B+D=8C+D
Page 748:
simple backprojection, p(x) is back
Page 752:
The units for the x-axis in Fig. 13
Page 756:
msec is preprocessed, mathematicall
Page 760:
FIGURE 13-33. The coronal, sagittal
Page 764:
ware through the volume data set, f
Page 768:
of CT slices. The MSAD could be mea
Page 772:
position along torsoFIGURE 13-37. D
Page 776:
Factors AffectingSpatial Resolution
Page 780:
x-ray beam hardeningFIGURE 13-38. T
Page 784:
FIGURE 13-41. A partialvolume artif
Page 788:
motion of the electrons in either a
Page 792:
Biologically relevant elements that
Page 796:
FIGURE 14-4. A: A single proton pre
Page 800:
FIGURE 14-5. A: The laboratory fram
Page 804:
magnetic field are separated by an
Page 808:
8 1 at Larmor FrequencyzMot:/81....
Page 812: The "decay" of the FID envelope is
Page 816: method to determine the T1 time of
Page 820: 50 msec). Molecular motion, size, a
Page 824: TEI'I180 0 EchoRotatingframe./FID s
Page 828: --_. unsaturatedpartiallysaturated:
Page 832: the figure on the left (longitudina
Page 836: Imageintensit)GrayWhiteFat1000 2000
Page 840: TRTERFpulses90 0readout~~~~~~--n~18
Page 844: Transverse decay (T2)Imageintensit~
Page 848: Rotating frame../FIGURE 14-29. Grad
Page 852: very shortTR. In these two regimes,
Page 856: FIGURE 14-32. A spoiled transverse
Page 860: acquired. Because the BOLD sequence
Page 866: Price RR. The AAPM/RSNA physics tut
Page 872: Linear changein magnetic fieldSuper
Page 876: TABLE 15-1. PRECESSIONAL FREQUENCY
Page 880: - 0-40 -30 -20 -10 10 20 30 40(1)-0
Page 884: Frequency Encode GradientThe freque
Page 888: Position of the spins in the third
Page 892: 15.2 "K-SPACE" DATA ACQUISITION AND
Page 896: RF pulses~ _J!~e_a~ Yd~h_qi!.t~r:e_
Page 900: peripheral areas (Fig. 15-16E) isol
Page 904: Acquired data:% matrix + 1 lineD-f
Page 908: TR180 0excitation90 0readout180 0re
Page 912: "effective" echo time occurs at a t
Page 916:
15.3 THREE-DIMENSIONAL FOURIER TRAN
Page 920:
Signal·to-NoiseRatioThe signal-to-
Page 924:
image acquisition. Eddy currents ar
Page 928:
of the blood. Since the detectable
Page 932:
YTExcitation I-- I#1TExcitation 1--
Page 936:
Magnetic susceptibility can be quit
Page 940:
computeroptimizedprofile"rectangula
Page 944:
since the evolution of the echo sig
Page 948:
3-4 ppm difference, fat-5 ppm diffe
Page 952:
Frequency synthesis of object (harm
Page 956:
15.7 INSTRUMENTATIONMagnetThe magne
Page 960:
Permanent magnets rely on the ferro
Page 964:
Superconductive magnets produce ext
Page 968:
TABLE 15-2. RECOMMENDED QUALITY CON
Page 972:
TABLE 15-3. MAGNETIC RESONANCE IMAG
Page 978:
Ultrasound is the term that describ
Page 982:
"Plane-piston"mechanicaldisplacemen
Page 986:
FIGURE 16-3. Ultrasound wavelength
Page 990:
Sound energy causes particle displa
Page 994:
TABLE 16-3. ACOUSTIC IMPEDANCE, Z =
Page 998:
TABLE 16-4. PRESSURE AND REFLECTION
Page 1002:
echoes typically have similar echo
Page 1006:
The echo intensity is one hundredth
Page 1010:
Equilibrium:No surface chargeEquili
Page 1014:
i] ,A0.8 0.9 10 1.1flf O"[:f: L~0.5
Page 1018:
then filled with an epoxy resin to
Page 1022:
Transducer elementDiameter, dLength
Page 1026:
and 36.4 cm, respectively. Lateral
Page 1030:
SummedSignalFIGURE 16-18. Dynamic r
Page 1034:
amplitude of the peripheral transdu
Page 1038:
Phased arraytransducerLateral -reso
Page 1042:
iUnderstanding ultrasonic image for
Page 1046:
teristics of the transducer element
Page 1050:
Pre-amplificationand swept gainI Di
Page 1054:
OJ'0~BeforeTGC 0.E
Page 1058:
---------_+-Time...................
Page 1062:
FIGURE 16-33. Articulating arm B-mo
Page 1066:
eturning echoes. The ultrasound bea
Page 1070:
apher must consider the compromises
Page 1074:
Ultrasound Contrast AgentsUltrasoun
Page 1078:
Harmonics build in relative intensi
Page 1082:
Linear components(tissue)Non-linear
Page 1086:
Mechanical:Transducer~Rotating acou
Page 1090:
(width and height, respectively) of
Page 1094:
(i\ I)ThroughtransmissionLow _" Hig
Page 1098:
MirrorimageFIGURE 16-44 (continued)
Page 1102:
error by neglecting the velocity of
Page 1106:
shift measurement because a narrow
Page 1110:
Each Doppler pulse does not contain
Page 1114:
t IE«-f maxo~ __ Frequency(Velocit
Page 1118:
AliasingAliasing, as described earl
Page 1122:
speed of sound. Measured velocity (
Page 1126:
6E0.s:::. 8-a.low scatter targets d
Page 1130:
horizontal targets (lateral resolut
Page 1134:
ultrasound used to enhance image qu
Page 1138:
Thermal and mechanical indices of u
Page 1142:
10'" ..!2 ES>-+"'"00 cQ)E+"'0.110 1
Page 1148:
cylindrical cable with a central co
Page 1152:
On most networks today, when two no
Page 1156:
sic (nonswitched) forms of Ethernet
Page 1160:
lion distinct addresses. The first
Page 1164:
Typical data transfer rates of mode
Page 1168:
Picture Archiving and Communication
Page 1172:
TeleradiologyTeleradiology can prov
Page 1176:
DigitalImageFIGURE 17-6. Charge-cou
Page 1180:
serving nuclear medicine, whereas a
Page 1184:
Multi-terabyteArchiveFIGURE 17-8. R
Page 1188:
computer or by specialized hardware
Page 1192:
Standard viewboxMammography viewbox
Page 1196:
An application program on the works
Page 1200:
CollimatorlensiBeammodulatorFIGURE
Page 1204:
An example of a fault-tolerant stra
Page 1210:
NUCLEARMEDICINE
Page 1216:
TABLE 18-1. UNITS AND PREFIXES ASSO
Page 1220:
II25 ~--------20 : :III12.5 . - - -
Page 1224:
Beta-minus (~-) decay, or negatron
Page 1228:
When they lose all (or most) of the
Page 1232:
Each radionuclide's decay process i
Page 1236:
MOL YBDENUM-99Beta-Minus DecayT1/2
Page 1240:
FLUORINE-18Electron Capture and Bet
Page 1244:
Alternating {_Voltage ~Magnetic fie
Page 1248:
FIGURE 19-3. Hospital-based cyclotr
Page 1252:
The total energy released by the nu
Page 1256:
Radiation DetectorsNeutron Beam Hol
Page 1260:
ProductionmethodNuclear reactor Nuc
Page 1264:
that shows details of the generator
Page 1268:
10087.5..•..•.-c::Q)u•..Q)D.-
Page 1272:
TABLE 19-3. PHYSICAL CHARACTERISTIC
Page 1276:
septa (see Chapter 21). A radiophar
Page 1280:
mediated by the energy-dependent Na
Page 1284:
depending on the solvent, either re
Page 1288:
(ii) The total dosage (i.e., admini
Page 1292:
nal. For other applications, photog
Page 1296:
are often operated in current mode
Page 1300:
20.2 GAS-FILLED DETECTORSBasic Prin
Page 1304:
Because gas multiplication does not
Page 1308:
is extensively used in biomedical r
Page 1312:
constituent elements and their low
Page 1316:
visiblelight -...photon+photocathod
Page 1320:
In crystalline materials, electrons
Page 1324:
of the diode and the negative polar
Page 1328:
FIGURE 20-13. Function of asingle-c
Page 1332:
Nal (TI)crystal..-r--..IIIIPMT...-r
Page 1336:
Spectrum of Cesium-137The spectrum
Page 1340:
with the emission of a 140.5-keV ga
Page 1344:
FIGURE 20-22. Pulse pileup.The dash
Page 1348:
distance, typically 20 to 25 cm, fr
Page 1352:
its samples ofI-125 and Co-57 to ac
Page 1356:
Dose Calibrator Quality AssuranceBe
Page 1360:
Two measures of the central tendenc
Page 1364:
4Number of SuccessesFIGURE 20-28. B
Page 1368:
For example, a counr of 853 is obra
Page 1372:
entering the standard deviations fr
Page 1376:
dose to the patient, nearly all nuc
Page 1380:
PhotomultipliertubesLucite light pi
Page 1384:
PulsesfromindividualPMTsAnalogJ....
Page 1388:
the object is moved yet farther fro
Page 1392:
TABLE 21-1. COMPARISON OF SINGLE·P
Page 1396:
Some types of collimators magnify (
Page 1400:
the product of three factors: the c
Page 1404:
() 0.5c CD"0If=CD.>
Page 1408:
TABLE 21-3. THE EFFECT OF INCREASIN
Page 1412:
6.4 mm at 10 cm from the collimator
Page 1416:
Digital'positionZ correctionlookup
Page 1420:
two ways that scintillation cametas
Page 1424:
quency of this testing depends on t
Page 1428:
ufacturers incorporate a computer f
Page 1432:
FirstimageSecondimageThirdimageFour
Page 1436:
pool image sequence, using T c-99m-
Page 1440:
adionuclides in patients, using a p
Page 1444:
mator, which never enjoyed wide acc
Page 1448:
heads of a SPECT system produced id
Page 1452:
0.50.4CD"0:e0.3c.E 0.2
Page 1456:
No AttenuationCorrectionAttenuation
Page 1460:
camera heads that revolve about the
Page 1464:
In planar nuclear imaging, radioact
Page 1468:
FIGURE 22-10. Image of a cylinder f
Page 1472:
TABLE 22-1. RECOMMENDED SCHEDULE FO
Page 1476:
Design and Principles Of OperationA
Page 1480:
2 by 2 arrayof PMTs~Slits cut intoB
Page 1484:
To detect coincidences, the times o
Page 1488:
DetectorelementsSeptalcollimatorrin
Page 1492:
J......... ······~~~~~I thiC
Page 1496:
FIGURE 22-23. Attenuationin PET. Th
Page 1500:
511-keV collimators and because the
Page 1504:
A system provided by another vendor
Page 1508:
Madsen MT. The AAPM/RSNA physics tu
Page 1514:
It is incumbent upon all individual
Page 1518:
(5 mrad/hr), which is approximately
Page 1522:
combustible fuels, including coal a
Page 1526:
TABLE 23-3. AVERAGE ANNUAL OCCUPATI
Page 1530:
TABLE 23-6. ANNUAL GENETICALLY SIGN
Page 1534:
with conventional x-ray film, radia
Page 1538:
FIGURE 23-3. A small chip of LiF (r
Page 1542:
Method Measures Useful rangePermane
Page 1546:
FIGURE 23-6. Portable ion chamber.
Page 1550:
Inverse Square LawE 2 = E 1 (0 1 /0
Page 1554:
adherence to the methods in NCRP re
Page 1558:
espective distances to the point in
Page 1562:
Exposure per week contributed by th
Page 1566:
Primary, scatter, and leakage radia
Page 1570:
IStairwaygQlc..>c19'" 00Waitingarea
Page 1574:
e the minimal thickness recommended
Page 1578:
Personnel Protection in Diagnostic
Page 1582:
TABLE 23-14. EXPOSURE RATE CONSTANT
Page 1586:
Filtration of the polychromatic x-r
Page 1590:
out ABC. Some systems have a high e
Page 1594:
the physician with the ability to m
Page 1598:
nologist in the correct selection o
Page 1602:
ination should remove their protect
Page 1606:
labeled with 1-131. 1-131 decays wi
Page 1610:
Phosphorus-32 is used for the radio
Page 1614:
clides are the "Standards for Prote
Page 1618:
TABLE 23-18. NUCLEAR REGULATORY COM
Page 1622:
National Council on Radiation Prote
Page 1628:
section 3.5). The old term for ener
Page 1632:
TABLE 24-3. ABSORBED DOSES TO SELEC
Page 1636:
Medical x-ray imaging procedures su
Page 1640:
mAs, and the distance from x-ray so
Page 1644:
FIGURE 24-3. The geometry fordeterm
Page 1648:
FIGURE 24-4. Illustration ofSourceo
Page 1652:
FIGURE 24-6. The cumulated activity
Page 1656:
TABLE 24-9. VARIABLES IN THE MIRD S
Page 1660:
not currently require manufacturers
Page 1664:
TABLE 25-1. DETERMINANTS OF BIOLOGI
Page 1668:
Radia~?/ 1'{"l20 H+ ow\ Ionization
Page 1672:
cific ionization (i.e., ionization
Page 1676:
chromatid aberrations. Unlike chrom
Page 1680:
10~n ,,,,,,C), ,,I:Dq'S; 1.0 ------
Page 1684:
ClC 1.0oS;o~::JCJ)~G)0-0C0:;:;(JCIS
Page 1688:
mediated through free radical produ
Page 1692:
Radiationdose~~ANSYS~Dose too---. D
Page 1696:
to normal within 2 to 3 months. If
Page 1700:
dose delivered over a protracted pe
Page 1704:
diseases such as ataxia telangiecta
Page 1708:
The stages of the neurovascular syn
Page 1712:
Most of the radiation-induced biolo
Page 1716:
adiation, such as radiofrequency ra
Page 1720:
TABLE 25-7. SUMMARY OF MAJOR EPIDEM
Page 1724:
,.,,. ,,.,,.,,.ỊI"", ,I, IIIIIII"
Page 1728:
Radiationexposure1-",,II, II,,III,
Page 1732:
the overall risk and relative proba
Page 1736:
times greater risk for development
Page 1740:
Estimating Genetic RiskThe genetica
Page 1744:
sure, owing principally to the rela
Page 1748:
1/3 for mice). Nevertheless, develo
Page 1752:
Numberoccurring fromnatural causesE
Page 1756:
Prenatal death(Some survivors,no in
Page 1762:
APPENDICES
Page 1768:
OriginalVector (V)InternationalSyst
Page 1772:
PotentialEnergyPotential energy is
Page 1776:
When a charged particle is placed i
Page 1780:
The joule is a rather large unit of
Page 1784:
The band theory of solids explains
Page 1788:
FIGURE A-7. A spinning charge has a
Page 1792:
Magnetic field moving towards wire
Page 1796:
Static magnetic fieldRotating curre
Page 1802:
PHYSICAL CONSTANTS, PREFIXES,GEOMET
Page 1806:
Appendix B: Physical Constants, Pre
Page 1810:
MASS ATTENUATIONCOEFFICIENTS AND SP
Page 1814:
Appendix C: Mass Attenuation Coeffi
Page 1818:
Page 1822:
Page 1826:
C.6 MAMMOGRAPHY SPECTRA: Rh/RhTABLE
Page 1830:
Appendix Co' Mass Attenuation Coeff
Page 1834:
RADIOPHARMACEUTICALCHARACTERISTICS
Page 1838:
1251Albumin (ONI) IV N/A -20 mL blo
Page 1842:
153Sm Lexidronam, also IV over a 1-
Page 1846:
-90% of dose excreted in 3 hr. Prep
Page 1850:
99mTc-basedmyocardial perfusion age
Page 1854:
99mTcMacroaggregated 0.16 ts 0.0161
Page 1858:
TABLE D-4. ABSORBED DOSE ESTIMATES
Page 1864:
914 Section V: AppendicesMedical Ph
Page 1868:
ASCII. See American Standard Code f
Page 1872:
DDAC. See Digital-to-analog convert
Page 1876:
Electronic switchltimer, exposure t
Page 1880:
Image magnification, spatial resolu
Page 1884:
Magnetic resonance imaging (contd.)
Page 1888:
Phased array, ultrasound, 490Phosph
Page 1892:
Radiation detection (contd)gas-fill
Page 1896:
Shoe marks, processor artifacts, 18
Page 1900:
Two dimensional multi planar acquis
Page 1906:
"Nope '" no sign of YOur kitten, Ma
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