Physics of Diagnostic Ultrasound
(1) where c is the propagation speed, v is the oscillation frequency, and λ is the wavelength. The mechanical properties (e.g., “rigidity”) of the propagation medium determine c; the source…
of Prostate US for Advanced Techniques in Prostate Biopsy and Prostate Cancer Staging
Fig. 1 Anterior tissue biopsy should be performed to obtain tissue along the anterior capsule. For random biopsy, a needle should be advanced about 1.5 cm from the anterior capsule…
Anatomy of the Male Pelvis
Fig. 1 Zonal anatomy of the prostate Reprinted from (2) with permission The prostate is composed of tuboalveolar glands surrounded by fibromuscular stroma. This stroma is composed of collagen and…
Ultrasound Artifacts and How to Fix Them
Fig. 1 As the incident wave bounces back and forth between surfaces A and B (yellow arrows), the returning waves are perceived by the probe as returning from reflectors progressively…
Prostate Imaging: Correlating Prostate Anatomy with MRI and MRI/Ultrasound Fusion
Fig. 1 Normal prostate zonal anatomy demonstrated with FSE T2 weighted endorectal 3 T MRI. (a) Coronal image (the letters along with the arrows correspond to the level of slices…
Elastography
and represents the change in displacement with depth (i.e., how tissue compresses). Strain is related both to the applied stress (σ, i.e., force per unit area) and the inherent tissue…
Infertility and Prostate Ultrasound
Pre-testicular etiologies Hypogonadotropic hypogonadism (congenital, acquired) Coital Disorders (Erectile Dysfunction, Ejaculatory disorders) secondary to organic etiologies (diabetes mellitus, spinal injury, vascular/neurogenic, multiple sclerosis) and iatrogenic etiologies (RPLND, bladder neck surgery)…
of Prostate Ultrasound for Benign Prostatic Hyperplasia and Male Urinary Stress Incontinence
Fig. 1 Interaction between different components and their overlap. The size of the circles is not an indication of the proportion but merely to high light the complex overlap Given…
the Prostate with Quantitative Ultrasound: Implications for Guiding Biopsies, Targeting Focal Treatment, and Monitoring Therapy
Fig. 1 ROC curves produced (1) by an MLP ANN using a leave-one-patient-out approach (upper curve) and (2) by LOS assignments primarily based on B-mode appearance (lower curve). The vertical…
of Prostate Ultrasound for Prostate Biopsy
Fig. 1 Transrectal Ultrasound Image (7.5 MHz) of the prostate denoting the zonal anatomy. Hypoechoic region anteriorly corresponds to transition zone (white arrows). Peripheral zone (relatively more hyperechoic) lies posteriorly…
