This document provides an introduction to multi-slice CT (MSCT) and describes some of its clinical applications. MSCT allows for faster scanning, improved resolution, and the ability to acquire multiple slices simultaneously. This enables more detailed 3D imaging and angiography of various organs and body systems. Some examples given include MSCT angiography of the brain, thoracic aorta, abdomen, and lower limbs. MSCT is also used to image the liver, biliary system, kidneys, ureters, and bladder. It can detect abnormalities such as cysts, masses, stones, and fractures. In summary, MSCT provides improved imaging capabilities for evaluating many anatomical structures and pathologies.

1. MSCT
AN INTRODUCTION TO A NOVEL TECHNIQUE
Dr. Hazem Abu Zeid Yousef
Lecturer of Radiodiagnosis
Faculty of Medicine
Assiut University

2. INTRODUCTION
The introduction of spiral CT in the early 1990s
resulted in fundamental and far-reaching
improvement of CT imaging.
For the first time volume data could be acquired
without mis-registration of anatomical details,
which initiated the development of 3D image
processing techniques such as multi-planar
reformations (MPRs), maximum intensity
projections (MIPs), surface-shaded displays
(SSDs) or volume renderings.

3. As an important application CT angiography
(CTA) has been established in clinical
practice. As a consequence of increasing
clinical demands, single-slice spiral CT with
1-s gantry rotation time soon encountered its
limitations.

4. Larger volume coverage and improved transverse
resolution can be achieved by simultaneous
acquisition of more than one slice and by a shorter
gantry rotation time. The first step towards multi-slice
acquisition was a two-slice CT scanner introduced
in 1993 (Elscint Twin). In 1998 all major CT
manufacturers introduced multi-slice CT systems
which brought about considerable improvements of
scan speed, transverse resolution and utilization of the
tube output.

8. SOME CLINICAL
APPLICATIONS OF MDCT

9. MDCT ANGIOGRAPHY

10. CEREBRAL ANGIOGRAPHY

15. THORACIC AORTA

16. ABDOMINAL AORTA

18. LOWER LIMB
ARTERIOGRAPHY

20. PULMONARY ARTERIES

24. COMPERHENSIVE MSCT OF
THE ABDOMEN

25. TRIPHASIC LIVER STUDY

31. HEPATOBILIARY SYSTEM

36. MDCT UROGRAPHY

37. NORMAL ANATOMY

38. NORMAL ANATOMY
FRONTAL (ANTERIOR) VIEW OF VR IMAGES

39. MIP IMAGE (POSTERIOR VIEW) VR DOUBLE DENSITY IMAGE
(POSTERIOR VIEW)

40. NORMAL VARIANTS AND
CONGENITAL ANOMALIES

41. NORMAL PAPILLARY BLUSH

43. PROMINENT RENAL PAPILLA

44. COMPOUND CALYX

45. PTOTIC KIDNEY

46. ECTOPIC KIDNEY

47. VR IMAGE MIP IMAGE

49. HORSESHOE KIDNEY

50. DOUPLEX LEFT COLLECTING SYSTEM WITH
ECTOPIC UPPER MOIETY URETER

52. UROLITHIASIS

53. CASE (1)
NON ENHANCED CT SHOWING
BILATERAL RENAL PELVIS
CALCULI WITH MARKED
PYELITIS.
ENHANCED CT SHOWING
GOOD ENHANCEMENT.

54. MIP; THE STONES ARE WELL-SEEN WITHIN THE
OPACIFIED RENAL PELVIS.

55. CASE (2)
THICK SLAP MIP
BILATERAL RENAL
AND UB STONES
CORONAL IMAGES
SHOWING MARKED
PYELITIS OF THE
LEFT KIDNEY

56. MIP; THE STONES ARE WELL-SEEN WITHIN THE
OPACIFIED RENAL PELVIS. MULTIPLE UB STONES.

57. CASE (3)
ACUTELY OBSTRUCTED
LEFT KIDNEY WITH
PERINEPHRIC COLLECTION
(FORNICEAL RUPTURE).

58. CURVED REFORMATS
SHOWING 3 LOWER
URETERIC STONES.

59. CASE (4)
CURVED REFORMAT
LOWER URETERIC STONE
CAUSING MILD HYDRONEPHROSIS
DOUBLE DENSITY VR IMAGE
THE STONE IS DEMONSTRATED
AGAINST THE UNDERLYINGBONE

60. CASE (5)
BILHARZIAL CALCIFICATION OF THE LEFT LOWER
URETER WITH LOWER URETERIC STONE.

61. CASE (6)

62. CASE (7)

63. CASE (8)

64. RENAL INFECTIONS

65. CASE (1)
MULTIFOCAL NEPHRONIA

68. CASE (2)
OBSTRUCTED INFECTED KIDNEY
ENLARGED LEFT KIDNEY WITH MARKED STRANDING OF THE
PERINEPHRIC FAT AND OBSTRUCTING PELVIC CALCULUS

69. DOUBLE DENSITY VR IMAGE SHOWING
THE OBSTRUCTING CALCULUS

70. RENAL SOLs

71. CASE (1)
NON ENHANCED CT ENHANCED CT

72. DELAYED FILLING OF
CALYCEAL DIVERTICULUM

73. CASE (2)

74. SIMPLE (BOSNIAK TYPE I) RENAL CYST

75. CASE (3)

76. MULTILOCULAR PARAPELVIC CYST WITH
STRETCHING OF THE MAJOR CALYCES

77. CASE (4)

78. BOSNIOAK TYPE II CYST WITH THIN CALCIFIED
RIM AND INTRACYSTIC SEPTUM
(THANKS FOR THE SUBMILLEMETRIC SLICE THICKNESS)

79. CASE (5)

80. INITIALLY HYPERDENSE SIMPLE CYST (BOSNIAK TYPE II)

81. CASE (6)

82. BOSNIAK TYPE III CYST
THICK ENHANCING INCOMPLETE
SEPTUM AND IRREGULAR OUTLINES

83. CASE (7)

84. BOSNIAK TYPE IV CYST
THICK ENHANCING MURAL NODULE

85. CASE (8)

86. SOLID PARAPELVIC MASS
CLEARLY DEMONSTRATED
IN CORONAL IMAGES

87. CASE (9)

90. MALIGNANT LOWER POLAR LEFT RENAL MASS WITH
ENHANCING MALIGNANT THROMBUS WITHIN THE IVC
AND SECONDARY VARICOSITIES OF THE LEFT TESTICULAR VEIN.

91. CASE (10)
MALIGNAT SUPRARENAL MASS
WITH LIVER METASTASES

93. DISPLACED LEFT KIDNEY WITH
DOUPLEX RIGHT COLLECTING SYSTEM

94. CASE (10)

96. URETERS
AS A RULE;
MALIGNANT URETERIC NEOPLASMS CHARACTERISTICALLY
CAUSE DILATATION OF THE URETER BOTH PROXIMAL AND
DISTAL TO THE LESION.

97. CASE (1)

99. CASE (2)

101. CASE (3)

103. CASE (6)

104. FIBROVASCULAR POLYP OF THE URETER

105. URINARY BLADDER

106. CASE (1)

110. CASE (2)
EXTRAVESICAL PARARECTAL MASS

112. CASE (3)

113. RENAL ARTERY ASSESSMENT

115. SOME SPECIAL TECHNIQUES

116. CONTRAST ENEMA

119. MDCT FISTULOGRAPHY

121. ASSESSMENT OF
POLYTRAUMA

122. FRACTURE MANDIBLE

124. FRACTURE CX SPINE

126. FRACTURE L.S.S.

128. FRACTURE PELVIS

130. THANK YOUTHANK YOU