Abstract: Phantoms for use in calibrating a dual energy imaging system and methods for their use. The phantoms include a body having at least first and second portions arranged in a through-thickness direction of the body. The first portion defines an anterior surface of the body and contains a first material simulating soft tissue and a second material simulating bone. The second portion contains a third material simulating lung tissue and at least a first object embedded in the third material and formed of a fourth material simulating tumor tissue. The first and second portions of the body are configured such that the second material in the first portion superimposes the first object in the second portion in the through-thickness direction of the body relative to the anterior surface thereof.

Abstract: Phantoms for use in calibrating a dual energy imaging system and methods for their use. The phantoms include a body having at least first and second portions arranged in a through-thickness direction of the body. The first portion defines an anterior surface of the body and contains a first material simulating soft tissue and a second material simulating bone. The second portion contains a third material simulating lung tissue and at least a first object embedded in the third material and formed of a fourth material simulating tumor tissue. The first and second portions of the body are configured such that the second material in the first portion superimposes the first object in the second portion in the through-thickness direction of the body relative to the anterior surface thereof.

Abstract: An imaging process capable of selectively enhancing visualization of soft tissues, for example, a tumor. The imaging process includes producing a hard tissue-enhanced image of a body containing both soft and hard tissues, wherein the hard tissue-enhanced image contains images of the hard tissues that are enhanced relative to the soft tissues. A radiographic image of the body and the soft and hard tissues thereof are then obtained, after which a weighted subtraction algorithm is performed between the radiographic image and the hard tissue-enhanced image to produce a soft tissue-enhanced image in which imaging of the soft tissues is enhanced relative to the hard tissues. The hard tissue-enhanced image may be produced by obtaining first and second initial radiographic images of the body including the soft and hard tissues, and then performing a weighted subtraction algorithm on the first and second initial radiographic images to produce the hard tissue-enhanced image.