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Clinical comparison of 350- and conventional 120-kVp techniques indicates that small linear structures, such as small pulmonary blood vessels, are shown better at 120 kVp, due in part to two factors affecting image unsharpness: geometric and screen-film unsharpness. The combined effects of geometric (Ug) and screen-film unsharpness were evaluated for both kVp levels. The total-system modulation transfer function (MTFUg X MTFscreen-film) demonstrates differences in unsharpness under two conditions: (a) when the same screen-film system is used with different magnifications (i.e., extreme planes in the chest) and (b) when different screen-film systems are used for magnification of the midplane of the chest.
A G Haus, and
J Meyer, and
L B North
May 1978,
AJR. American journal of roentgenology,
A G Haus, and
J Meyer, and
L B North
January 1975,
Investigative radiology,
A G Haus, and
J Meyer, and
L B North
September 1997,
The British journal of radiology,
A G Haus, and
J Meyer, and
L B North
December 1977,
AJR. American journal of roentgenology,
A G Haus, and
J Meyer, and
L B North
November 1957,
Radiography,
A G Haus, and
J Meyer, and
L B North
April 1997,
Radiology,
A G Haus, and
J Meyer, and
L B North
March 1993,
AJR. American journal of roentgenology,
A G Haus, and
J Meyer, and
L B North
April 1995,
Radiology,
A G Haus, and
J Meyer, and
L B North
January 1992,
Pediatric radiology,
A G Haus, and
J Meyer, and
L B North
October 1993,
AJR. American journal of roentgenology,
